Thanks for the opinions thus far. on the handling issue i don,t think that is a problem. We have heard some say "nothing bigger than 36-38 feet with 3 slides" because anything bigger causes to many problems parking at to many parks. We have heard some say the parks get very tight and parking gets scary at times trying to maneuver a 40' rig into place and avoiding "obstacles" (like trees).
So we are questioning whether to stay below 40' or just get what we want in a floor plan and storage and hit the road knowing there is plenty of places to stay and park. i am a very confident driver and am not afraid of the lengths at all on the driving part - but we need to park it eventually lol.