Damn that rail is a perfect fit! I just bought a 3 gallon kit from Ebond back in November. Glad I got it then. I didn’t know there was a shortage on that too.
Nice build, look forward to seeing it come along! Just a thought mind, although i have been working on yacht maintenance for several years, i have yet to build anything larger than a kayak, so i may be wrong here! But isn't the colision chamber there so as to provide a containment area behind the probable area of colision, so that in the event of a cracked hull, water will not flood the rest of the boat? I mention it as you have a drainage point at the bottom, which in that case could be counter productive? 😅