I would check:
www.coolworks.com and
www.work-for-rvers-and-campers.com Also, we have an adult son with Down syndrome who receives SSI and is eligible for other services that help us keep him at home. AZ, although it can be expensive if you don't know how to bargain hunt and I bet you do, is supposed to be one of the better states for Medicaid services. I am my son's paid caregiver. If this sounds of interest, pm me and I'll try to direct you to the info. I know that FL has something like an 8+ year waiting list for services. There are different waivers, physical, etc. Just thought I would put this out there if you weren't familiar. And, best of luck in finding something that works well for you and yours.