It's been a while so another bump is in order.
Still have the following available:
50mm Distagon with hood, $775
150mm Tele-Xenar with hood, $975
180mm Tele-Xenar with hood, $1950
17mm Extension Tube, $125
22-68mm Variable Extension tube, $725
Retro Adapter, $475
Prices include shipping (CONUS) and Paypal.