Please DO have him help you make the list you want to try. Pulling one from the Internet means he isn't as involved and he truly will benefit from being involved personally. He will remember what HE helps to write much better than he will care about some list from a web site. And he will have more ownership of that list and more care for what's on it.
One thing to note: What if he loses the list? Or will you possibly go to the school with him and have him tape it inside his desk so it won't get lost? If he loses it, that will add to his stress, so please don't say you'll have to punish him if the list gets lost. That only would put more pressure on him, when your intention is to reduce pressure by giving him this tool. Please don't put it on top of the desk since that will draw other kids' curiosity about it and make them pepper him with questions. Inside the desk, taped, would be great. But ask the teacher -- you don't want him looking inside his desk at the end of a test and being accused of cheating by looking at materials in there.
He sounds just like my daughter in about grades 3-5. In fifth grade especially she had a class with other kids who constantly wanted to borrow her supplies and she didn't want to say no because she wanted to be helpful, but inside it drove her crazy. And one kid broke more than one of her pencil sharpeners, etc. She also had a more disruptive set of classmates that year than other years. It turned out the school had placed the more disruptive, immature kids in the same room on purpose because it was believed this teacher could deal with them better, and she did OK, but in retrospect it was tough on the "rule-follower" kids in that class. Is there a chance that your son's teacher has intentionally been given specific students so she can straighten them out, but kids like your son (and my daughter) are paying a price she does not see? She needs to know.
Does the teacher know that your son feels the other students are disruptive? She can't see everything that happens between kids, so if others are asking him questions a lot, she needs to know that's going on.
If they are borrowing his stuff excessively -- and frankly after my kid's experience, I believe it when your son says this goes on -- does the teacher know that's going on?
Does the teacher know that your son feels overwhelmed by noise and interruptions?
She really does need to know. Yes, your son may be more sensitive to these things than other kids, but if she (or you, or any adult) dismisses his very real upset as just "You're being oversensitive," then he won't get any help. Part of that help does indeed need to involve the teacher moving him to another location in the room and/or moving other kids who are disruptive. While you can't tell her to move anyone, you can emphasize that your son's distress is daily, and is getting worse and not better as the year progresses; and that you believe what she sees as lack of attention to detail may, in part, be caused by his being distracted by noise, questions, and worries that other kids will want his stuff.
If she isn't aware of the constant borrowing, she needs to be, and you and your son -- yes, he needs to be there doing the asking after you and he practice it -- need to ask the teacher if she would consider banning borrowing. I've seen teachers do it. She should NOT single him out! She must not say "No one can borrow from Bobby, it bugs him" but should say "Startring today, if you do not have your supplies you have to cope for that day, and come see me if you lack a pencil or sharpener or colored pencil. But from now on, no borrowing from classmates." As a general rule for everyone and without singling out your son.
She may say no to that. Fine. Then you need to role play with your son how to say no firmly to classmates when they ask to borrow stuff. I had to do that with my daughter and had to remind her over and over that she did not have to say yes to be nice or to be friendly. Give him specific words to use: "Sorry but I'm not lending this sharpener. There's one over there on the wall." When a kid wants his ruler: "There are rulers in the drawer over there." And so on. Most classrooms have supplies but kids would rather just turn to the kid next to them (or to the kid whom they have identified, frankly, as the easy mark who lets them borrow stuff). He needs to direct kids to those supplies and then turn away and be too busy to talk again. Same with kids who interrupt if he's doing classwork: "Hey, we can't talk now, I"m working." Then head down and no further reply. It's hard to teach especially as early as third but it is doable IF you practice a lot and the teacher is made aware that he seems to be the one kids keep talking to.
You mention he "always has extras to share" -- stop that. No more extras so he can say, "Sorry I don't have any more here, just the one I'm using."
And of course he is responsible for the many tiny omissions that are making his work into "rework." Being interrupted and having stuff borrowed don't excuse that but they do make it likelier he can't focus. Be sure the teacher knows you, and he, accept that only he makes those errors and that distraction isn't an excuse, but also be clear that you want to work with her on reducing this stress he feels about the other kids. If he's a born rule-follower and lover of order like my child, it IS very stressful if the classroom has a high proportion of kids who are more scattered, disruptive, borrowers, never ready, always asking for help or materials or asking what the directions were. We've been there and I really feel for you and your son.
I would strongly, strongly recommend that you get the school counselor involved now, too. Don't wait. Talk to the counselor, just you alone, about your son and his sensitivity to other kids' busyness and unpreparedness. Ask if the counselor can meet with him to talk about ways he can handle that better, scripts he can use, etc. He will encounter this again and again during his school life so getting him some role-playing help, and having a counselor who knows kids of all types working with him, could help him learn to cope better.