The screens needed about 1/2 inch more room to try to fit the screen on top of the goggles. I did this by propping up the outside piece and taping it over with blue masking tape. On the inside I drizzled 5 min quick set epoxy in sections on the inside of the goggles overlapping edges of the existing pieces to make a whole. Once it has cured for 12 hours I pulled some tape off before heading out to work. It is normal for tape to sorta stick to the epoxy and usually it needs to either be scrubbed with water and dish soap or hit with a sander to remove the excess.  In test fitting I do see as a whole there is a bit of a tunnel effect losing about 10 percent of the side view on each side. I look to widen the goggles side to side to fit three screens later and eliminate this. Widen the view will also provide room for a third screen which is the original intent of the project.

 You can see this is going very well. The next step is to make some cuts measured so they are equal on each side. once there are cuts the ends will be turned out 45 degrees eliminating the forward blind spots and also widening it enough to fit the 3rd screen as originally planned.