Ebay it and look for local pickup (sort by distance, nearest first).... will save you on shipping
I did that and found one for $1
Later I ended up getting some for free w/ a free cab I got from another guy, so they're
not exactly like gold...
(but you can't have mine

btw, search for
"coin door" not coin mech, and you will get better results.
I even got better results looking for "coin acceptor"