Awesome. I looked at your most recent image -- very nicely done. I can't wait to see more.
As far as cameras, I've owned (and own) too many. Currently, my favorite/most-used is a toss up between my 645DF and my Hartblei H-Cam B1 (either of which paired with my Leaf Aptus-II 12 digital back -- I'll be getting a Leaf Credo 80 in the coming months). I also ordered a Nikon D800e for the hell of it. . . looks like a pretty swell camera, all things considered.
I've owned 5Ds, and always thought of them as spectacular cameras, too. Great image quality from them. But for printing, medium format digital is pretty much king. I can make enormous prints.