The Graflex 2.0 comes reasonably accurate, and can be modded to be 85-95% accurate. It has pre-drilled holes and taps for all the parts. It's intent is to be a lightsaber. It's made by, and intended for, the electronic saber crowd. It's designed to be wired with lights, speakers and hold a blade.
That said, it's currently the cheapest way to get a Graflex-based saber on your shelf without being a toy. It's more accurate and less expensive than the official offering. It's perfectly good for being a static hilt too.
Roman is making a replica camera flash right down to the Graflex stamp on the bottom. No current product exists yet to judge accuracy, but if you look at Roman's other stuff, you can trust it to be in the 95-99% accurate. That's not to say it couldn't be wired-- there are ways to wire an actual Graflex now, so I assume you could do the same-- but his intent is to make as faithful of a reproduction of the original Graflex as possible and leave it anyone who buys one to convert.