Thanks for the advice, so you wouldn't bother putting anything on the inside of the boat to seal it? Some of the cracks are on the corners or inside dented areas so might be hard to get the patch to conform to the shape of the boat perfectly.
Another question, it looks like the handle was...
I picked up a 1436 polar kraft flatbottom boat with a gas tank and a 20hp mariner tiller motor on craigslist the other day for $300. I mainly wanted the motor so I just consider it like getting the boat for free. The boat is old, should be pre 1972 since it doesn't have a HIN on the transom, and...