It's so good, and yes I agree with the others Machinator that I would gladly pay for a set of those resin accessories to build my own Fellblades.
Its just too cool of an idea not to. I'm also dreaming of what your Iron Hands Fellblade will have. I would expect some fairly exotic main weaponry with thier Mechanicus ties. Maybe almost a "Pocket Ordinatus" as a general theme
-Larry