Hi All- new to the forum and thought i'd ask for some advice. I have an '86, 25' Sailfish and I'd like to replace the starboard side thru hulls that sit at the waterline. There is a tiny inspection port behind the wall in the head that allows to almost see the fittings but no way can I get to them. I figure I'll need to cut a larger hole and hire a very small/thin helper to get in there somehow. I'm sure I'm missing some type of tip on how to do this- any help would be greatly appreciated!