I found a 99 Jayco Designer 3610XL that got a hole in roof above bedroom area. It has water damage to ceiling in bedroom. Guy selling it says make an offer. I have found a few online pricing around 15,000 to 17,000 for same year model. Anyone have any sugestions as to what to offer? Its not really that bad looking and Im just assumeing that repair/replacement of roof and ceiling panels will get it back into working order. How much does damage like that really effect the value of a RV?