I don't know if this is of any help, but a Falcon sold recently on ebay for about $600. It seems to have been in really good shape and with a complete gruppo (early Shimano 105) as opposed to a mish-mash of stuff. What condition is your bike in? What is the lowest offer do you'd be willing to accept? How much is your time worth to disassemble, clean, list, ship, etc.? I recently sold a Univega Gran Turismo, all original components, one user, excellent shape, for $150. If sold for parts I might have been able to sell for $200 but my labor would have come to fifty cents per hour, so I consider the $150 a good deal. On the other hand, I purchased a vintage De Rosa in not so good shape, frame and components were all in poor condition, for really cheap and then sold for parts because the offers I got for the whole bike were pitiful... I got my money's worth out of that one when I sold the Campagnolo gruppo as a whole. I suspect you're better off selling your Falcon whole.
http://cgi.ebay.com/Vintage-Falcon-C...QQcmdZViewItem