buying a repo'd camper

Find the low point drains before adding water to holding tank, as well as water lines and water heater, and check for water leaks with the 12v pump instead of city water, it's a faster turn off if there should be a leak. Bring lots of paper and regular towels just in case. Take spray bottle with soapy water to test for propane leaks. Be sure if it has a bypass on the hot water heater to test for water leaks before sending water thru it then, if all else is good, open up to the water heater to check for a leak or worst case like ours,a busted tank. Make sure it actually has the drain plug in it too. Bring something to drain test water from black tank into, gray tank no biggie just wet. Watch around the drain lines in inside compartments and around the outside as well as any visible holding tank bottoms/sides. Start testing on 12v stuff first then plug into land line and check 110v items one at a time as well as 12v, don't leave plugged into truck when testing the on board camper battery(ies). Check out breaker/fuse box on converter for blown fuses or breakers that are off before testing. Look for water stains in cabinets, around Windows and vents and hand test for softness indicating not as obvious water issues. By all means check the roof out, all seams, as well as anything that comes thru the roof and all roof edges for sealant cracks that need immediate sealing. Try to get a hookup between your truck and the camper, doesn't need to be on the truck to test the lights and 12v items that run while on truck battery, separate from the camper on board battery and charge the on board battery while doing other stuff or bring a fully charged battery(ies) and test to see how that works. Look in all outer compartments for water damage and keep a close eye out during these inspections for any frame cracks, separations, in outside floor under camper, corners, frame in general especially at the corners at Jack locations. Anything you find that's off, it's up to you to decide if you have the time, money, inclination and expertise to fix. Even tho it's less expensive than new I assume it's still a hefty expense, be really sure the floor plan is one you're comfortable with. No matter the savings, if it's not set up for your needs you won't be happy. We bought a really, really old camper, did a LOT of stuff (needs and wants both) and for our budget it all came out well. In the end, you are the one who has to be satisfied that it's what you want and need. Good luck. Sure others on the forum will chime in with things not mentioned and more good information as well.