armor bodies repair

I just picked up a SV650 with armor bodies fairings. The upper fairing has a gelcoat crack approx 6-8" long but the fiberglass seems fine. Apparently the damage happened when something hit the fairing while off the bike. I'd like to fix the gelcoat and apply either a plastidip coating or rattle can paint job. Been researching a bit, wondering about the following.​Should I reinforce the backside with additional fiberglass?Would bondo be the best option for gelcoat repair?Advice on plastidip (aerosol) vs. spray paint?Any other advise or lessons learned?​The bike is in the track garage, so I don't have a good picture. This one gives an idea of where the crack is (red line)​https://i.redd.it/g1796bzpmk931.jpg via /r/Trackdays https://www.reddit.com/r/Trackdays/comments/cbp07l/armor_bodies_repair/?utm_source=ifttt