Removing Head Through Hulls

I have recently turned my attention to the head through hulls and sea cocks - they were essentially seized up and corroded.  Since Froonie will be sailed in the St Johns River and just along the coast, I have decided to remove the through hulls and just use a head with a holding tank.  I have no plans for blue water sailing on Froonie and can not discharge waste near shore, so the waste-out and fresh water intake through hulls aren't needed.  

Friday, May 8th, I removed the sea cocks with a reciprocating  saw - working very carefully to minimize damage to the hull.  I was successful in removing the old through hulls and sea cocks without tearing up the hull.  Next, I turned my attention to grinding a 12:1 bevel around the through hull holes.  I will be applying fiberglass patches to these voids, and then completing by fairing with either West System's 407 or 410 filler.