Finally have some progress photos on my 8 x 20. I have completed the back standard assembly and the back frame itself. The two photos show the back standard in the two positions to have the camera either horizontal and vertical. I've encountered a few minor challenges, but nothing major. Two things I've realized since I've gotten this far. First is that "THIS THING IS REALLY BIG". I can't imagine what you real big camera people deal with. Second is that in the vertical format, the top of the camera will be pretty high up there. Removing the dark slide and film holder will be a challenge. I have to think about how tall my tripod will be. Good thing that I'm not vertically challenged.