If the barrel hasn't been lopped, you ONLY have to source a fore-end, etc, plus the associated metal bits. It depends on where the fore-end has been cut and if it has subsequently been "customized" with rasps and sandpaper.If the trimming has occurred under or forward of the outer band, halfway up the fore-end, and is not sanded down to toothpick proportions, an "extension" piece can be grafted on without TOO much difficulty.
The always-entertaining and informative Mark Novak has a related video here:
There seem to be the odd complete, un-butchered butt around, but they are rapidly vanishing.
Canada used to be awash with these rifles; check the "odds and ends" bins and boxes at your local gun shop, EH!
Get them to send you a pic.They want to sell the thing, right? Even a crappy one taken with a cell phone is better than nothing.
If it is shootable with a decent bore, a sportered MLE does not have much of a premium over a sportered SMLE. You dont give us much to go on (I have a blue Ford pickup, some rust, what's it worth?), so a wide ballpark figure would be $150-350 in Ontario.