Congratulations on your catch. Before you start moving batteries, figure out why? Some guys have and some have not. So far after having my 216 for 17 years I've seen no reason to do it. One of the first things I would do is check out the condition of the fuel tank. Do a search on Cabo boats, there are several threads here and most likely everything you can think of doing with your boat is posted on one of the threads. Don't forget to check out the trailer too. What motor do you have on the boat?