Question..IF you like it and buy it, how are you getting it home?....sounds like you've been around engines a bit so you've got a pretty good handle on things there. That said, and the reason for my question, if the coach is in good shape and passes your initial inspection, would the seller let you spend the night in it? As cold as it is, you could get a pretty good handle on the workings of the fridge, electrical, heater, water heater, stove and all that stuff.....that wouldn't cost you much and if he balks, you might ask yourself why. IMHO, anyone willing to go as far as you are, is an interested buyer and I'll bend over backwards to make sure you're comfortable buying my coach....good luck..keep us posted...Dennis