OK, I received my C12 a couple days ago and had my friends 3-D printed the parts. I stayed up last night to do the conversion. I had never opened up a camera back before and also found out that I needed to sand down the printed mask etc etc., the whole process took about 3 hours. I am sure I can do it in less than an hour now.
A roll of Tri-X is in the back, and I took a couple test photos this morning. I will take a walk later and take some boring pics of the neighborhood. The kicker is that I have a 203FE, so I have some fast FE lenses. so that's a huge plus against the XPan, also, much closer focusing, and also the ground glass. The minuses are much heavier setup, can only handheld around 1/90, and no equivalence to the stellar 30mm XPan lens, and of course, slightly smaller image.
So I think if it works well, it will not replace my XPan, but if I just bringing the Hassy, throwing an extra back in the bag will be a no brainer, to gain some flexibility in viewing. Oh, my ground glass has the grid line, so I just use the center two strips. Should work fine.
