Try Craig's list..you might find someone, or of course your LHS. It might not hurt to check with folks on here if you get an estimate....just to ensure you are not being taken for a ride. Your call. I cringe when I hear people paying for this stuff, but I understand you want to run. What exactly is wrong with them?
Keep in mind these machines require constant maintenance....so there is a very good chance you pay someone, drive it, and something else immediately needs to be fixed.