I am removing the bracket to my power pole. I do not need a power pole on my aluminum boat. The top two holes are not a problem. The bottom two holes will be a pain to get a ratchat on the nuts with the gas tank in the way but I plan to try to remove the nuts somehow. If I can remove the bottom two bolts without losing the nuts, how can I close off these holes? After I get the bracket off I know I can't get the bolts and nuts back in again. How can I close these bottom two holes. The holes are above the water line. Any ideas out there?