OH BOY OH BOY. The shop thinks they fixed it. I stopped in and they were still working on it. I will pick it up in the morning and post pictures.
SO, they removed everything and started over. He said one of the plastic mounting brackets was broken, so he had to get new ones. ISUZU HAD THEM IN STOCK! WOW!!! And the replacements are now metal?! He said they only attach with a plastic (DUH) set screw to the glass, so he used window adhesive to mount to the glass. He had to place several washers under the right side on the top and several on the right side on the bottom (where I had the gap between the regulator guides and the track). He said it stays on the track with no problems but slows a little when the glass gets to about 3" from the top.
I won't be able to test it for 2 days until this adhesvie dries, but I'm excited. He didn't charge me any labor, just $35 for the replacement brackets.
I feel really bad because they started on it at 8am and just now getting done. But I'm thrilled it might be fixed!