Repair Options for Stress Crack in Deck

I just purchased a 1975 Sunfish about 2mths ago from the original owner. Over the past 46 years she took excellent care of it, all original hardware, sail, manuals, and never applied sale numbers post-marked summer of 75. How cool! I buffed out the original gel coat and sprung for a Trailex-220-SUT to keep her pristine. She’s my baby, and I plan to keep her for quite a while even if larger boats come along.

Sadly, what began as small stress cracks on the unsupported cockpit deck have grown...

Repair Options for Stress Crack in Deck