Welcome from NE Ohio on Lake Erie.
We too had 25+ years of backpacking from the UP to the AP Trail and Adirondaks. Like you, ground sleeping was getting the better of us and we graduated from a 2 person (+2 dog) Timberline tent, to a really old and used popup, then to the TT.
You'll have a lot of fun in your new / used camper, although to be honest, we could set up our backpacking site quicker than setting up the camper in a campground!