Toy Haulers are great! We love ours and modified the garage ramp on ours to be a deck before it was offered by the factory. Now every Outlaw and most Toy Haulers have the deck option.
We opted for a Dometic Xtend-A-Room vs a screen wall, but both are great to keep the bugs out. Some makers offer zippered plexi-glass walls that keep the AirCon inside the garage too.
Photo credit to RVOUTLAWZ
http://rvoutlawz.com/xtend-a-room-toy-hauler-patio-2/
We just fold it up when not deployed...
The garage is a multi-purpose room that, after the toys are rolled out, can be used as a bedroom, shop, kennel room, craft room, office, den...etc....the list goes on and on.
We have a Cal King bed in our loft and see no reason for a dedicated bedroom - which allows room for the garage. And, some bigger Toy Haulers have both.
About RV size...there's an old saying: Too big lasts a day or two...too small is forever
Our Class A Toy Hauler with car in-tow is 55' in total length (37' RV and 17' for car and tow-set)...we have never had a problem getting where we wanted to go. At the end of the hard-top, we use the car or motorcycles to explore farther.
See:
http://www.irv2.com/forums/f258/clas...rs-130973.html
Hope you enjoy yours as much as we enjoy ours
Best Luck