I see them from time to time on ebay, though I'm not careful watcher. To compare, I have seen them more often than Minister 700 with f1.7 lens. Another thing I've concluded that Professional model (we know, it's early model) is more age prone and needs repair practically in all cases, if it's not done before sale.
I will not predict prices because in EUbays they tend to be higher.
I also will not express my opinion on your need of this camera 🙂 just because I also have got some cameras because of same motivation. Good luck!