Numrich in the states, has SMLE stocks, for No 1 and No 4 enfields.
I've bought several from them, in decent condition. There is a $30 fee on top of shipping, for exporting firearm parts though. That said, the price of a stock is half of what it is here, so it kind of evens out... I usually place a large order to offset the export fee. Spend half an hour there and you'll be able to find nearly all the bells and whistles most milsurps are often missing (Bayonets, slings, stripper and charger clips, that little screw every RC K98 doesn't come with... etc).