$50 for a jug and piston?
I know for a fact I <b>can't </b> come anywheres near that price, not even for aftermarket. I doubt if any of the rest of us can either. So if you have a line to cheap parts, then maybe you can buy that saw for $50, stick a little more in it, and be good to go. Assuming nothing else is really wrong with it, that is. The rest of us probably won't be able to do that.
I think where a lot of us are really coming from is that it is pretty hard to be confident about buying some classes of stuff on ebay. Chain saws are one of those classes. I know I have been burned....more than once.
I bought one that was advertized as "compression low, needs new ring"
When I got it I found that it was literally not worth repairing...Jug and piston both gone, main bearings noisy, rod big end loose, and it looked like somebody had used sand for bar oil, because the hole for the eccentric piston in the case was about .040 larger than the oil pump. The rewind still worked, anyway!
Of course I got my money back, but UPS doesn't give any rebates, do they?
maybe I'm still ticked off about that, but less than honest shysters on ebay are a particular pet peeve.