C.C.
My advice is, stay in a hotel! LOL
Just kidding, we went camping a few years ago and we bought the biggest tent at Target. It's like the Taj Mahal of tents, it's absolutely huge. Surprisingly it wasn't hard to put up. I forget what brand it was - Coleman or something? I'm sure Target doesn't carry a ton of huge tents; it's probably the only brand there. We had a king sized air mattress, a pack-n-play, and a twin air mattress, along with clothes, shoes, toys, etc. We still had room left over.
After that camping trip, I decided that I would rather enjoy the great outdoors from the indoors, and we gave the tent to our cousins who have a strange affinity for bugs, dirt, and campfire smoke, and they've used the heck out of that tent. It has held up really well. You could probably find a used one on Craigslist or eBay for cheap.
I don't know how "rustic" the place is that you'll be camping at, but we found the Coleman instant hot water machine to be a lifesaver. It runs on propane and will take freezing cold water and make it as hot as you want, on demand. Soooo handy for washing faces, hands, dishes, making coffee, etc. We bought ours used on eBay for $50 or so. (I also brought our French Press to make coffee, along with coarse-ground coffee.)
The other thing I found super helpful was to go to Dream Dinners and pre-make a bunch of dinners. I put them in a cooler with dry ice to keep them frozen until I wanted to make them. It was SO wonderful not to have to try and assemble dinners over a picnic table.
And, bring tons of bug spray, baby wipes, and clorox wipes.
Happy camping!