Nice and light is the way to go. C-8's weighing more than the C-7A2 20" bbl rifle is silly.
I read about the original rifles from '64 to '68 being problematic due to soft brassed cases, improper propellant, poorly anodized and rust proofed, non-chromed chambers and barrels along with pins falling out. The AK series had teams of engineers working on it and doing lots of testing and tweaking before it hit the production lines. After that it had over over a decade of improvements made on it by the time the Americans went toe to toe with an enemy armed with the AK. Stands to reason there were so many problems with the AR-15. Today, though it is a different animal altogether. The rifle can finally be called "mature" and reliable.
The original style for me is all that is needed. Hanging sh1t off it just makes it heavy and cumbersome.
Congrats on the purchase.