The Sons Of Guns Episode, with the 1000 yd AK, was true,....the only mods were a Krieger 22" barrel, and a slicked up trigger.
That's IT. and it worked. Shot 4 leaf clovers....
Yes the barrel is worth more than the rifle,...but let's keep it in context.
The AK/SKS, were never designed for tack driving accuracy at distances beyond 100/200 yds. Remember the AR vs. the AK thread?
Adjustable sights on the AK you never mess with? AR's you can 1/8 MOA adjust? Please......

It's a combat beater weapon.
My 30/30 Winchester comes close as a lever action,,.... offhand, put meat on the table, or a BG down rifle. Just like my Saiga AK....Keep the crap accessories off of it,....leave the adj. sights the hell alone..., and hit with combat accuracy to 200 yds.
That's it.
If I need more, I got's more,...

Hell, my Moisin can do better with crappy ammo....
It is what it is. tweak it, make it better, or leave it the hell alone.