That looks like a nice way of fueling it. I've tended to avoid them, as I've seen too many that have leaked, or sucked air. Although many people are using them. I would suggest cutting down the fuel line from the fueler valve to the needle (the purple one) it looks longer than it needs to be. One of the reasons I asked about the fuel lines, is that I like to pinch the line to get a feel for needle setting. Having it enclosed makes that difficult to do, but obviously, much cleaner.

Nice job so far, can't wait to see it finished and a flight review. I'm tempted to pick one of these up!