No. 1 Mk III volley sights

Hey everyone,
I'm new to the world of Enfields and just picked up my first one about a month ago. I know now how quickly it turns into a sickness. :) I picked up an all matching 1916 LSA No.1 Mk III at a gun show. It was still absolutely caked in cosmoline and the guy I bought it from was selling it from an estate. The gun is complete except for the volley sights. I have scoured the web from here to the UK and have only found a couple of sets but they were incorrect for my gun. Does anyone here know where I would be able to find the correct rear volley sight and the arm portion of the front sight? Any help would be greatly appreciated. Original parts only by the way, no replicas. Thank you all in advance!

first of all is the stock cut out for the volley sights and if not then i would just leave the rifle as is. good luck!