Lee-Enfield No1MkIII Parts
Hi,
You could also try ebay. Look for the vendor "leathern" from Gray, Maine.
I got a complete stockset restoration parts kit in excellent+++ condition for my BSA-Shirley No.4Mk1 Lee-Enfield. I had no problems with Canada Customs while it crossed the boarder via USPS. His prices are resonable and will gladly help you out.
Like some of the others have said, you could check with Marstar (Johnone) too if you don't mind waiting a while for their parts to come in.
I plan on getting a couple of magazines from him (Marstar) for my rifle.
Let us all know how you make out.
Welcome to the Lee-Enfield Brotherhood!
Rgs...kajn65