[Capt. Debbie]

If the cracks are growing then just seal them. My 14' Mirrorcraft is 1982 and I simply use a putty knife to smear aquarium sealer in. Unlike epoxy it is flexible. Epoxy eventually twists and loses the seal a bit.

It's smooth and does not create any appreciable drag. And it's cheap.

If the cracks are growing there is a technique used with steel cracks of drilling a small hole at the end of each crack line. Works like a fire break does. Stops the crack's path progress,

Frankly the welding n patch work you're looking for may be an unnecessarily drastic repair.

I've been at this for 40 years. Trust me, it works.

Flex seal drags like a bitch in the water. Never use it outside the boat.

When boat is hauled out put tape next to the spots leaking water. That way you know where the next sealant smear goes. You stay on top of it for your 2000 vessel.

Hope this helps?