Bushpig, Don't feel bad about the lost Koni. While yeah, they shoot nice 6x7's there were never all that many made. The ones out there have likely had heavy pro use shooting a million rolls on weddings and such. Lot's of worn out gears and few available parts.
Hasselblad on the other hand had the rep so there are thousands of them to be had from dentists who have gone over to digital.
Of course if this was a primo condition camera from a lawyer feel free to cut your throat.