Guilty as charged. You are absolutely correct on both counts Surpmil.
I used SMLE trigger because I much prefer a grooved trigger and finding an original No.4 grooved trigger looks like it might take a while.
The forearm is a place holder until I find a suitable walnut forearm. It it came complete with an Ishapore screw and was relitivly inexpensive. I needed quite a few parts for this rifle and limited funds and this was one of the couple things that I temporarily cheaped out on. I wanted it to look as much like the original as possible so a little work with a sharp chisel and there you have it lol. You were the first to notice or at least the first to mention it.