After a long period of researching generators to back up my whole house and shop, I decided I wanted an MEP-003A. I have too many projects now, and didn't want another one, so I chose to buy one in working condition from an eBay seller with 100% feedback who buys them, fixes them up, and resells them. I'm sure you can find a better deal by buying directly at auction and doing the repairs, but for $2400+shpg I got exactly what I wanted. At the seller's suggestion, I used uShip to find a trucking company with a good price. It turned out to be $330 to have the unit picked up with a lift-gate truck, wrapped in a blanket and stretch wrapped, strapped to a pallet, trucked about 500 miles, and delivered to me on a lift-gate truck. I'm sure the pallet wasn't necessary, but they did it.
I don't see one on eBay at the moment, but they do come up fairly regularly. Of course you're not guaranteed to get a perfect unit from eBay, but I talked to this seller on the phone about the generator ahead of time, got shipping advice, and the feeling he was sincere. He even suggested I do an Internet search for his name to find out more about him.