Suggestions on sealing holes in Leer cap

I have a Leer fiberglass cap I am changing the rack on and wrapping (vinyl). The new tracks I am putting on are a bit shorter than what was up there, so I am going to have 4 holes total I need to seal, and be able to go over with vinyl. The holes are about 1/4".

My train of thought is to somehow back the holes from the inside and fill from the outside with some type of epoxy I can easily smooth out without sanding or otherwise doing too much damage to the paint. Any ideas would be much appreciated!

 

The right way to do it is fiberglass and epoxy, but that takes a lot of labor, sanding, and cost. These toppers are constructed out of fiberglass similarly to a boat, so you can google fiberglass boat repair or stop by a West Marine or similar. In all honesty though, I think that's a waste of time on a truck.

The next best way to do it would be to use bondo. You can get bondo from any automotive store or even home depot. Typically you sand bondo smooth and repaint, but it's fairly workable and easy to get smooth before sanding if you take your time and use a plastic putty knife, cleaning around the hole afterwards.

The easiest is to just use a good silicone caulk, but you will be able to see that through the vinyl wrap.

 

How could I have forgotten about bondo! I think that may be the winner.

 

This is the best but expensive for a couple small holes. It will stay good in tube though.

$33 West Systems 610 Resin/Hardener Epoxy Adhesive, 190mL Cartridge, Straw

https://www.amazon.com/West-Systems...tem+610+epoxy&qid=1560042638&s=gateway&sr=8-3

 

If anyone comes across this in the future with the same issue, I ended up just getting longer tracks to cover the holes. But I think either bondo or that West Systems epoxy would have worked fine.