While you got yours and should be very happy about it, I'll add another one to the list just for any body else looking.
Zeiss Ercona, 6x6/6x9 with 105f3.5 tessar. Going to put my first roll through it this weekend.
Indeed! I didn't mention the Ercona earlier because it's not as compact as a 6x6, but I have an Ercona II with the CZJ Tessar and it's quite impressive -- although at only eight shots to the roll, film disappears fast!
I don't have the 6x6 mask for it, but then, for 6x6 I do have the Perkeo II (and the Yashica TLR, and the Bronica ...).