Considering Braindead already has made a scoped bolt action rifle (search for Hunting Rifle, it's WHITELISTED, meaning you can level and everything with it!), i think the Lee Enfield would feel a little... weird to balance. (But it is a British weapon, which is great)
If anything, I'd say the SVT-40 would be a bit better, and easier to balance. It's a russian semiautomatic rifle which can be reloaded with either 5-round stripper clips or the whole magazine (stripper clips would be better for balance i guess?) and also can attach a bayonet. It'd be a better "in between" rifle of the LAR and the M14. Slower than M14, but stronger per bullet. Faster than LAR, but weaker per bullet. It could also be even more different than those 2 by (beyond the bayonet) having a quite high penetration effect.
That, while the Hunting Rifle right now is the perfect "in between" rifle of LAR and Xbow. Slower than LAR, but stronger per bullet. Faster than Xbow, but weaker per bullet.
The Lee Enfield though, where would that be, in between the Hunting Rifle and LAR?