Do not believe ANYTHING a dealer tells you until you verify it for yourself. There is a reason a unit that new is for sale on a used RV lot. Chief has some good advice. I would suggest you insist on talking to the previous owner before you do anything else. If the dealer refuses or is reluctant, walk away. A reputable dealer won't hesitate to put you in contact with the previous owner . . . unless he has something to hide.
curmudgeon: noun; a crusty, ill-tempered, irascible, cantankerous old person . . . .
79 27' Holiday Rambler Statesman, 78 32' HR Imperial, 85 36' HR Imperial 5th Wheel