Congradulations on the upcoming retirement.
We can sort of relate to the changing MH s
We found a "C" that we thought was perfect for the two of us.
After a couple of trips, we kind of kicked the idea around about a bigger rig.
Stopped at a local dealer to "look at what they have". Wrong thing to do.
Found a 30' Class A with 2400 miles on it and plastic on the floor and furniture.
Needless to say it's now ours.
Getting used to driving it isn't hard. As was suggested prior, take it for some short trips to get used to the way it handles.
Good luck and happy camping