I'm one of the few that are for buying rentals. RoadAbode was one and we've had her for 10 years now (check our blog, started in 2004)
But any Class C with water damage already in the front cab-over - or any delamination - I'd stay away from personally. There's just too many RVs out there to start off with a bad one. Not saying it can't be fixed - I've seen some awesome stories of handy guys doing it - But unless you have the inside space to work, the time and some sort of handyman know how, then it's not something you want to take on. If you can see damage, then what can't be seen is probably worse. Your mileage may vary of course.
On Thor - I saw newer Thors (and sister RV Chateau) at the RV Show in Hershey and was surprised the build quality and layout was better than I previously seen in that company.
On previous rentals - RoadAbode was a rental from a smaller local dealer, but search the forums for "El Monte Sales" there are some that are happy with the value they got. Just be sure to check out any RV you look at really well, both the Coach and the Chassis, or have a mechanic check it out. That's what I did.
Good luck on your quest. RVing is a Awesome way to see this country.
