B.M.
Dear J.,
Let me start by saying that I'm sorry I no longer have my playpens to offer to you. Mine were mainly to take to the homes of others for sleeping purposes. However, when my "baby" was born, I used my big one to put the older two in when they wanted to play with little toys that would be a choking hazard for her (like legos). One I gave to a friend when she had her baby several years ago. The other I held onto until just a couple years ago. My suggestion if you really want a playpen would be to look for yard sales, especially those that advertise items. Or like suggested below, the Pennysaver.
As for gates, my husband bought one, and I thought he was crazy. What in the world would we need that for? Well, I have worked graveyard since my son was born nineteen years ago (part-time until my baby was in school full-time). I slept when they slept. My son was really good about coming to get me when he woke up. Then he figured out he didn't have to come get me. And I found Lifesaver crumbs all over my house - what a mess! Not to mention all the other potential problems and dangers of his being unattended - so out came the gate. We started putting it in his doorway when he was asleep, so he had to call for us to come get him when he awoke. However, my son fairly quickly figured out he could hook his toes on the ventilation holes in the gate and climb out. So my husband used some old panelling to cover the gate. Then he figured out how to throw his leg over it, so we had to put it up higher - but then he could scootch out under it. So we basically had to put it at just the right height so that he couldn't throw his leg over it, nor could he worm his way under it. The gate was great, but it was a science to get it just right to serve it purpose!
Figure out what will work best for your purposes . . .
Good luck!
B.