Are you buying from a private owner or a dealer? We drove to the California coast for ours and thought we had it covered . . .
We did end up buying it but the dealer had not been honest with us. The first obvious thing was that the ads said that it had been stored inside and that was clearly not the case. The curtains were bleached almost white and it came with a cover. "Hello, McFly!"
The dealer sold park models and took ours in on trade. They didn't have much of a clue about TMs. A private owner would know if they were taking you or not.
We asked them to have ours filled with water and power run to it. Spend the night in it if you can. TEST EVERYTHING!
Malinda