You don't state what kind of rv you have, other than its a fifth wheel. You are better off repairing anything that needs repaired. Most people are not handy, and will pass up your rv for one that is in ready to use condition. Most people don't understand how much things cost to fix, so they will think the worst. Being three years old, you can assume it lost 30 to 40 percent off what you paid as soon as it left the lot. Add in 5 to 6 percent for each year after that, you are approaching the 50 to 60 percent range of what you paid. The fact that you got 40 percent off msrp means nothing, as everyone basically gets that. Selling an almost new rv can be very depressing. People think they can get most of their money back, but in reality, no one will pay anywhere close to the price of a new one with full warrantee. Good luck, and hope you get what you want. Cheers.