Fanta510, it does look exactly like these:
http://velosniper.blogspot.com/2008/...t-vintage.html
It looks like the steel one would fit as is and its under $10 with shipping.. (was the steel comment sarcasm?)
the 6 hole one I could sand off the extra 3 mounts and use it.. it would match better. although they all have rounded mounts and mine they are squared off.
or
as a few people mentioned above... are there any problems with me picking up a 19t for the back and just running the 52t?
and by the way I did get the dust caps and only paid 60 for them, so it sounds like the dust caps are worth some of that.