looks good jolt.
I don't understand why you are going the electrolysis route tho, it's pretty much a cost/energy ineffective process, and doesn't lead to energy freedom in any regard.
You have the electronics skills, I'd think you'd be in a great position to jump all over Stan's work, and there you only need the 3" cell to get started, which I am sure you can build easier than this beast!. On that note, you could turn around and run this on a VIC and get huge production without chemicals.