LHE check-up

[npknhldr]

So I've been playing NL live now, might explain weird lines/thought processes.

Game (20/40 kill) is fairly new, villain is avg decent, 4bet cap.

Terrible, rich player limps utg [edit: he's on wait list for 10/25NL], mp raises, lp villain 3bones, I'm in sb with AKo. BB has cards in hand, waiting to toss.

PF should one cap here, knowing donk will fold, and opener will fold most of his range, leaving me HU oop against the 3bettor? Or, do i cold-call, and play a 4 way pot for 3bets oop but with a good relative position for a CR?
Note that if I thought villain had narrower 3bet range, I would muck AKo pf from sb, although presence of donk changes things...

I call Four to Flop, which is KQ4. What's my line?
I went for a check raise, and was not obliged...

It checks through. Turn is brick. What's my line?
I went for another CR, pf 3bettor bet when checked too, I raised, fold fold, he thought, and 3 bet me. My combo line for turn/river? (I ended up call/bet river).

It's HU w/ 3bettor. River is ace. Line?