Wow, but someone has a serious obsession about plumbing upgrades in a weekender cruiser boat. Plus how do you run all that stuff, pumps and all when not plugged in at a marina (which probably has less cramped plumbing available)did not see pix of massive battery bank needed to operate all the stuff. But on other hand, it is fun to add things that matter to you and figure out how to fit them on the boat and make them operate, so go for it. Been playing around with converting cockpit into hot tub or maybe water bed, but still working on idea while in my recliner at home near a real bathroom. LOL