I would say that if you do buy that rig and there is no delamination and you found moisture you really need to do some work to the seams. I suggest you spend the time and take off all the trim, remove all the butyl tape seals and replace them either with new tape or with a better option such as a good quality caulk.
I had to make extensive repairs to the siding on my rig because those seam seals under the trim failed. When I pulled off the trim I found out how utterly inadequate they were. I even pulled the compartment doors and found the tape on those had also failed.
In many places the butyl tape had been stretched so thin it likely NEVER created an effective seal.
I ended up sealing everything back up (after I made extensive repairs to the fiberglass siding) with lap sealant in generous quantity. I ended up using about six tubes of the stuff including resealing the top of the front cap over the cab. I pulled the trim off the entire rig including areas that were not damaged and removed all the compartment doors and laid a bed of sealant on it ALL! I used the lap sealant because it never fully hardens and flexes with movement. I also used new screws.
:E
[purple]I ride it like I stole it![/purple] :B
.......and I just may have.......
I'm on "CB-13", are you?
2004 Fun Mover with a 1998 Road King and a 2002 Sportster tucked in the garage, Dragging a 2002 "RAM Tough" Dodge Dakota Crew Cab. Ohhh what a haul!
TSgt(Ret.) USAF