Usually on the surplus page you'll see a little paperclip beside listings that have notes like "rusted out" or "coolant leak" or "does not run." They're supposed to discount any buses with problems by $500. I would have been happy if they had given be that $500 after the bus guy hid the coolant leak from me, but nooooo. I had already signed the title before they finally gave me the bus records that I had asked for fifteen times. I was actually driving off and tuned around to go get them. If I hadn't done that I would never have known to anticipate that problem.
Make sure to get the oil analysis and maintenance records for whatever bus you pick, and look at them BEFORE you sign anything!
My build thread:http://www.skoolie.net/forums/f11/build-thread-for-haulin-oats-and-goats-11237.html#post113500
A gal, a guy, three cats, two dogs, one rabbit, and one goat, traveling the country together.