Agree. ACP is good stuff. They sell everything he will need from mylar to peel-n-ply, glass and excellent laminating resin. This is all aircraft grade stuff in reasonable quantity. While MGS is the best, its only available by the gallon from Aircraft Spruce. going this route, fix it once and be done.
May want to post-cure too.

But with either hobby grade epoxy or CA+kicker(quick fix), likely not a lasting fix IMO.