I have just settled to buy an older 34 and have a few projects to work on.1. I understand the water tanks are in the keels - is there a reasonable way to access them?2. 31 years old and it has a few large cracks in the gelcoat - what is the best way to eliminate them?3. I would like to upgrade the countertops with Corian - anyone taken theirs out? Some hints on how to do this?thanks,Ed