Folks, There is a very pretty 1978 Mondia frame for sale on ebay, and the seller has other CR-qualifying items FS as well:
http://ebay.com/
If I could hacksaw it down to a 51 and get away with it, I'd buy it myself, but all I can do is drool longingly.... :-(
Regards,
Jon Spangler (who wishes he were a few cm taller and longer of leg in Alameda, CA)