The final piece of the puzzle was put in place today with some help from my friend Viktar: we connected and tested the fresh water pump. With that, fresh water system plumbing is complete! The original plan was perfectly executed in 3 months.

1971 Newport 30 Sailboat
The final piece of the puzzle was put in place today with some help from my friend Viktar: we connected and tested the fresh water pump. With that, fresh water system plumbing is complete! The original plan was perfectly executed in 3 months.
Second to last piece of the puzzle is in. The Shurflo accumulation tank is plumbed in. Only the water pump is left now.
Tested the water heater and things are working great. Pretty awesome to have hot water on a boat!
Well, after all the hoses and wires were connected the toilet appeared to be dead. As I started troubleshooting, I realized that an inline fuse holder was wired into the +12V wire from the battery but I never actually put a fuse in it! Once that was fixed, we were in business. No leaks, no troubles. Happy!