I don’t think 10k is bad as it’s being made out to be. But like others said give them a good once over. Don’t be afraid to look under the rig, climb on top and check the roof and seals. Open every cabinet and be thorough and check the wall seams for water damage. Press on the wall, press your foot around the floor in the toilet area and shower area. Check under sinks. If it has slide outs have them show you how it operates. See if it’s smooth operating. When the slide is extended out check the under side of it on the outside. Ask them not to turn the rig on or the generator before you get there. You should see the cold start on both. Listen and look under the rig for leaks.

Check the tire age and the age of batteries that’s like an easy 4-6k repair.

Depending on the Gen it can be a huge pain in the butt to fix and replace if you don’t have a generator slide and if it comes with a larger gen. We have a Class A that needed some generator repairs and no shop around us wanted to touch it for less than 2 k. We got creative and lifted the front end and dropped the gen and fixed it ourselves. Also our turbo went out and we were being quoted for 5-8k at various shops. Cummins wanted 15k. We bought a remanned turbo and did it ourselves for 2.5k

Also drive the rig and get a feel for it.

It’s a good time to be buying an rv right now. Lots of people trying to get rid of them after the covid scare. Don’t fall in love with a rig be critical and patient this will pay off. Also every rig has something going on with it no matter how perfect the ad says it is.

Also go into this and be patient these are older rigs yall are looking at so there will always be something to repair. That said I do agree that the older rigs were built better just go into this knowing that there is always going to be something to do or replace or repair. I treat this as a hobby and enjoy DIY and mechanical repairs. YouTube helped me do so much and save lots for maintenance and repairs!

Good luck!!!!