What do I have?

I received an old, sporterized Lee-Enfield rifle which I'd like to restore to its original condition. Here are two pictures of said rifle. Thanks, Dennis

With regard to the full length image, what parts do I need to complete the rifle to original condition? I've been to both Gunparts and Springfield sporters but can't make out the schematics too well and am not familiar with the nomenclature. I know I need the rear sight guard, but what other parts forward of the sight do I need? Also, they show a variety of mfr Indian? British? Australian, etc.; which ones would I want to specifically look for or doesn't it make a difference? For example, in Spgfld Sp parts list they show two forarms, one is new (EFD, cut for cut-off) and the other is used - Indian - from DP rifles. What is EFD and what is DP rifles? I just want a representative No. 1 Mk III. The serial numbers of the parts do not match. Everything appears to function, although I haven't fired it. Your assistance greatly appreciated. Thanks, Dennis

What you have is a No.1 Mk.III* manufactured by BSA in 1917.
A complete tour of how your rifle should look after restoration can be found in the England - Milsurp Knowledge Library here:

1917 BSA No.1 Mk.III* (Click here)

Coincidently exactly the same rifle except it is fitted with a muzzle protector. :)

What he said :) Isn't the MKL a wonderful thing?

Good luck, looks like a nice project.