---

Hi,
If you are serious about finishing your project,
and not have it stall out and become a craigslist deal,
I would ditch the gelcoat idea and go with an epoxy resin repair,
an epoxy primer,
and awlgrip LP top coat.

Whoever suggests polyester probably doesn't work with resin too much,
and gelcoat takes so much sanding and polishing before and after the application,
it is not for a beginner.
Awlgrip can be sprayed or rolled/brushed.
It is strong and shiny.

Epoxy resin almost always kicks thoroughly,
and no need to use laminating or finishing resins.
It doesn't smell although you shouldn't breath it in anyway!

The corner repair can be built up with almost anything,
wood, the insulating foam sold in sheets from Home Depot, bondo,
or a mix of each.
The strength is multiple layers of glass.

Anyway have fun and wear a mask,
and I like to work next to a fan!

TP