any update on finished product would like to see some pics

i was gonna install a lilliput screen in my civic, using bondo reinforced with fiberglass. i told my project to a guy in my CNC machining class and he mentioned about cracking over time and that i should use rtv to mold it and make a single piece. then i looked it up on here and found this guide. and i was wondering he mentioned something about using microballoons and milled fibers. is this a good idea?