Depending on what type of camping you plan on or if you think you might need a generator for rest stops, you may be better off with a Honda portable set up. We have the Trail Air hitch and think it is a worthwhile option. If the MorRyde pin box was an option I may have bought that instead of the TA. Dual Pane windows are a big plus. Less noise, condensation and they seem just so much better overall than single pane. We have the 10cu. ft. fridge with the ice maker. If you get the 12 ft fridge, you lose the pantry. DW wouldn't go for that. We have a 3.2 cu.ft. freezer in the washer/dryer area so we can stock up on steaks and stuff. Being full time that was a necessity. With a coach as big as the 3670 you may want to consider bedroom a/c. Get that order going and have fun.