After much debate on making the overhead removable I decided to trust in my efforts to make everything accessible through the switch panels and glassed the overhead permanently in place. Now starts the smoothing process to get a finished surface. The surface does not need to be paint perfect as I am planning on an automotive style cloth covering that will hide small imperfections.
I will likely need to cut access holes to the hinge bolts as the overhead covers the area. I might be able to reach under the overhead to install and tighten the nuts without a cut out. Either way I will need to form covers for the interior hinges.