I was also given a Bronica ETRSi body, also in mint condition, but body only. Looking around KEH, eBay and other places, it's going to cost me a few hundred bucks to complete the Bronica. I know (more ...
Mechanical engineering student Kevin Kadooka has managed to frankenstein together two very different Mamiya parts into a custom made camera that combines a twin lens reflex setup with a Polaroid back.