Great news about having the door enlarged for your son. We also have a son who needs a wheelchair, however, only for longer trips. He is able to get up and down the steps, but it's a killer. Can't recall the shower set up in your new HTT, but we had to use the CG shower before moving to our TT. Now we have the garden shower that allows space for a small shower chair.
I think you'll really enjoy your HTT. We had ours from '06 - '13 and still consider ourselves hybriders even though we moved to a 26' TT. This getting older is for the birds and between DHs high-tech hip and other assorted issues, the move was a good one for us.
You'll be able to get into CGs and sites you'd never have made with a larger MH. Enjoy and give your DS a hug from us....he'll find a whole new world out there.
Trailerless but still have the spirit
2013 Rockwood Ultra Lite 2604 - new family
2007 Rockwood ROO HTT - new family
2003 Ford F-150
4 doggies - We support Adopt/Rescue.
Sam, you were the best!
Cubbie, Foxy, Biscuit and Lily - all rescues!