Huyang could’ve had a collection of crystals in storage aside from parts, which could likely be more accurate. The crystals may not have been kyber, being that you don’t need a specific kind of crystal for a lightsaber as long as it’s maybe durable, Luke of course forged a synthetic green one and Mace Windu had a Hurrikaine Amethyst (according to a book I read).
I’ve wanted one of these my whole life. DareDevil is one of my favorite Superheroes, and his billy club is one of the coolest devices if ever seen. Would be really something if you could make one of these with real metal casings and could actually hold your weight as a grappling mechanism. But at the very least, we have this!