I suggest that the number one thing to look at is the roof and any signs of water damage due to leaking seals. Due to how well my 2002 Sunline TR280 has held up, looking for an older Sunline may be a good idea. They were well made trailers with great cabinet work...but heavy by today's standards. Once you find something, I'd spend a lot of time removing old roof caulk/sealant and then reseal with appropriate material for the type of roof. Do a thorough check of propane gas lines, electrical lines, etc. Consider that replacing older refrigerators can by expensive, as well as AC units. Of course, if you have the know how to do a lot of your own work, you can save a lot of money.
Good luck...hope you find something that will work!
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