Wait for Turn in Huge Pot?

[Argus]

UTG is unknown - he limped in so I assume he's weak.

MP is a bad playing LAG with stats of 49/23/1.3 over 150 hands. I haven't noticed him do anything out of line, and what I have noticed about his play isn't too relevant to this hand (it's about blind steals).

SB is a multitabling TAG, possibly 2+2. 20.4/16/2.4 over 4k hands, and most of them are datamined because I avoid him unless he's on my left.

BB could be described as a typical 10/20 player: 38/26/2.8 over 4k hands, and not too out of line though very aggressive.

The question is, should I wait until the turn to raise in this enormous pot?

Empire Poker 10/20 Hold'em (6 max, 5 handed) converter

Preflop: Hero is Button with A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
UTG calls, <font color="#CC3333">MP raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">SB caps</font>, BB calls, UTG calls, MP calls, Hero calls.

Flop: (20 SB) K[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">SB bets</font>, BB calls, UTG calls, MP calls, <font color="green">Hero?</font>