Mike interesting innovations
I assume the underdeck furler enters below deck close enough to the bow to drain into the chain locker and then down into the keel. With the 2:1 purchase that has to make it easier to furl and unfurl.
I also like the center fixed block and cleat to keep the mainsail sheet always located at the same spot and not moving back and forth with the traveler. I may steel that idea on my commander. One thing I do with my traveler that I find very useful is a continuous loop on the control line. It is much easier when the boat is heeled to uncleat the leeward cleat and it gets rid of a lot of unecessary line in the cockpit.
You have come a long way and completed a lot of the major work on your rebuild. Mine is just beginning. Have you test fired the electric drive yet?