WTB: GS500 engine (UPDATED)

[gaspy]

Help!
I'm looking for an entire working (with proof, preferably video or photos and sound) gs500 engine. I prefer a 2004+ motor from a gs500f with the oil cooler. This is a call for sellers with confirmed positive feedback and gstwin reputation. Please PM me if you are selling one.

If possible, I'd like to offer a trade for my current engine (plus cash) which is knocking in the top end. I don't know what the problem is, but I'll give you as much information on it as I can if you're interested.

here's a parallel post with updates to my engine's problem: http://gstwins.com/gsboard/index.php?topic=43304.0

-gaspy