a MOUT sniper rifle -- exactly what the VSS Vintorez is.

pics courtesy world.gun.ruhave been toying around with that idea myself though what i was planning to build was the Samopal Libra with a trap suppressor. but only because the caliber for that is closest to the FN 5.7 ammo.

pics courtesy libraaasanyway, a totally cool idea, komrad M76. but since you're thinking of using the MP001, we're treading on shaky ground -- that is not really an AK.
for a bolt action rifle, here is one possibility:

but that is much closer to the L96.
i imagine the major part of any AK sniper rifle project would be building the stock and the handguards. less work if you pick a base gun that is closest in looks to your intended end result.
you might try messing around with the
AK Contructor to give us an idea of how you want your AK MOUT sniper rifle to look.

french site, and takes a while to load, so try to be patient.

pm for you, komrad