A boat that interests me has four 4 x 22 and six 4 x 14 ports. None open and have lexan bolted and siliconed to the outside. Is it worth going overboard and buying bronze ports,which my wife thinks are beautiful but costly but maybe worth it, I on the other hand think the plastic ones are fine,we are not going blue watering or anything serious. How Difficult is it to replace ports with new ones whether they are plastic or bronze I am reasonably skilled with about thirty years of cabinet making experience, and all the tools I think I would need to do the job. I have never taken a port off and replaced one so I would appreciate all advise from those who have been there and done that?