Gelcoat over epoxy?

[FishStretcher]

I am getting closer to gelcoat time. It is slow going borrowing a basement in winter to do mods.

I know enough to spray PVA on after the gelcoat so it cures. But How thick can I put the gelcoat on. What i sanded off was probably .04-.06" thick? Not much more than 1/16". I am wondering how much I can hide? And are there gelgoat thicknesses/viscosities I should be looking for, like runnier versus thicker? I am wondering how much 1708 biax print-through I can cover up.

This outer layer has the right resin ratio with the slower hardener- a 40 minute plus pot time is much nicer to work with. I plan on sanding with 40 or 60 grit and sandblasting where I can get away with it. I assume it can cover this?

I am going to re-use the bottom of the original seat as a hatch and make the door semi-permanent and a 150 quart cooler as a seat instead. I got tired of opening the giant door in the smallish 20 foot master angler for every little thing.