So the hinges have been a nightmare. As I mentioned, the hinge I want doesn't seem to be available, so I had to print my own. I went through 3 or 4 revisions.... I'd put them on only to have the pin snap under the weight. I eventually got one that worked well, but the problem was slippage. The glass would slip right out of the hinge. I tried adhesive, putting tension screws in, nothing worked. I've legitimately been working on the problem all week.
I *think* I've finally got it. You know what worked? You know that extremely cheap double-sided tape that comes in window insulation kits? Yup.... put two layers on the glass where the hinge goes on and used the tension screws. It seems to finally be holding. Adhesive can weaken under strain though, so I'll let it set overnight and check it in the morning. Anyway, I'm behind schedule... I thought I would be done by now, but I'll print out the hinges for the left door tonight and bolt it on in the morning. Then I have to engineer a sliding mechanism for the center panel, which I'm sure will also be a disaster getting to work right.
Then I can work on the signage.