Gulfstream I imagine ameri-lite or the like. (They make a few lines). What model? If it fits you, that's a good price. I cannot agree more with all the posts saying have him run you through everything. Use it as a 'how to', but pay attention to all the things that need a kick, wiggle, or 'worked before'. Not saying he's trying to do you wrong, but someone will have to fix those things. Lastly, check the rubber. No matter how wonderful this thing is inside/out, if the tires are shot it won't go far. RV tires, specially cheap ones, have a short life span.