RV Living with MS

Does anyone here live in an RV full-time with MS? If so, where do you live? My husband and I looked at an RV the other day as an alternative home because the housing prices are so high but the salesman told us that it may not work for us because the AC only will get it down to 20° cooler than the ambient temperature outside, I have to sleep with the AC at 65 in order to feel comfortable so I was just wondering if anybody else who has MS lives in an RV.