The Koni-Omega TLR's appear from time to time on E-Bay. I think there's one listed now under Medium Format. Ive always been tempted to get one, especially because the Koni backs I already have will fit. Since they usually sell for around $300, I have managed to resist temptation! I figure the money would be better spent on something newer such as a Fuji 6 x 7 rangefinder.

Konical