I used an RV for 13 years as a crash pad in Memphis.
I had a 22' class C that fit nicely in the parking lot on Democrat. I spent one night there once and the crew buses kept waking me up. It's much more restful to drive up to TO Fuller State Park over by the river. $20 a night.
For training I stayed at both the Agricenter in Germantown and the Jellystone in Horn Lake. Just depended on whether I was going to Hacks or the Gucci Building.