might want to tke some of the west system repair kits. They're not too expensive, and can save the day for a quick fix. Not sure about the jellyfish, I've never had a problem with them. I have seen a 18ht hit a Manta Ray and have to replace a hull. The dagger board cut through the hull like butter. Other than that a waterproof vhf might help, you might need to contact a bridge keeper on the intercostal or in an emergency. Sounds like a lot of fun, I'm jealous.