Hi, I recently managed to pick up my grandfathers SMLE MkIII* after getting my firearms license and, while it's dirty, it is in really good condition. Are there any non-destructive ways to mount a scope or picatinny rail on it? I'm slightly short-sighted in my right eye which makes the iron sights hard to use and would prefer not to shoot left-handed. The only mounts for the Mk III I've seen online required drilling a hole in the receiver or taking a dremel to the forestock, and I've only seen a non-destructive mount for the No. 4 and 5.
This possible to buy or even make, or do I just have to suck it up and deal with it?
Thanks!