I'm re-powering my 92 Olympic Resorter. It has an OB mounted on an extended transom. The original hole for OB controls is 4 1/2". I want to use the factory Suzuki OB control hose which is 2 1/2". I'm considering drilling a new hole and using the existing hole for just my kicker controls. Is this a good idea? If so, what is the best way to drill and seal the newly exposed wood in the transom? Lastly, while I have all the controls out, what is the best way to recondition the original 4 1/2" hole?