Reply to "rear screen Pantera."

Simon;
I recently installed a Lexan rear window which I cut a little larger than the original glass and placed it inside the passenger compartment against the pinch weld rather than having to use glass and the rubber molding. I used 4 screws, both across the upper & lower edges and one screw at both ends. Should I need to access the top front of the engine, I can simply take the Lexan out. Since I just went through restoration, I have not used any sealant at this time (may need to access front of engine); however, I plan to place a bead of black caulking around the outer edge of the Lexan when I decide I will not have to access the engine compartment. Should I need to access after caulking, I will simply pull the caulking off and take out the screws. Don't know what restrictions you may have with vehicle inspections, but I had no problem.