Two items of potential interest:

Sputnik which I am sure will close low... (one lens has fallen off, maybe
you can fix it):
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220328581108

Pair of UV filters that fit the Sputnik. These were used in the camera
above. Appears to be a custom job but they work well:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=370129434608

See the entire Medium Format section of my ebay store here:
http://stores.ebay.com/DrT-3d_Medium-Format_W0QQcolZ2QQdirZQ2d1QQfsubZ1981892QQftidZ2QQtZkm

George Themelis