I'm interested but as mentioned above I could buy a brand new 21mm for well under that price from Stephen Gandy directly. Truth be told I don't really NEED the viewfinder either, but if you're willing to work on the price let me know.
From the rules.
"Do not comment in the thread. If you believe that an item is overpriced, then that is a matter for the seller to figure out when it doesn't sell"