Are there tent campgrounds here?

Yes there are tent camp grounds there. Just watch for the buffalo and wildlife. There is also camping at the lake right next to the refuge and a swimming area that they charge a small fee to do

Yes. And sometimes you get really lucky, sometimes not. Doris Campground, has full-electrified Roach Coach sites to designated semi-primative camp sites (tent only). One caveat on the single non-electrified spaces share with tents, pray you dont get an RV w/generator (almost always rude ppl) with an annoyingly loud tv, air conditioning & everykind of electronic noise making device they can pack, including the screaming wife & kids who hate being outdoors next to you. But Dad just threw down $200k on the outdoor experience as an investment. Because he can. www.fws.gov/refuge/Wichita_Mountains/activities/camp/doris.html

Yes. Just have to check which ones may be more desirable. Check at the visitor center for guidance.

Not sure either

Visited at night, so not sure.