Sounds like, a peice of scrap iron too me. His word may be trustworthy to some, but there is a chance that the cylenders may have been mangled from a blow up, he sleeved it so he could sell it, kinda makes you wonder when it has a compleatly wrong sleave in it ( diffrent manufacture even ). If ya really want it, offer him a couple hundred, if he's despirate to get rid of it, he'll take it.