PLO100 - picking up a good draw, deep, in an out of control pot

[Elrazor]

UTG is a fairly good player i have played against lots and have several thousand hands on - he generally runs 42/18/4, but is playing more agro this session (52/26) especially against me, in the last few hands we have played a couple of big pots, each winning one - i dont mind getting involved in hands with him tho even OOP as i generally play better post flop than him

BB i have 86 hands on - hes 55/3/2.5, going to SD 36% and winning 25%, a classic loose passive showdown muppet, and hes marked with AAxx. Im running 24/6/5 this table, and i know pre flop is marginal for some players but im 99% sure having played with UTG so much that hes not repotting, button im not worried about either as he never 3 bets, ever

Fold, call or shove?

Cryptologic
Pot Limit Omaha Ring game
Blinds: $0.50/$1
6 players
Converter

Stack sizes:
Hero: $338.15
UTG+1: $212.30
CO: $317.80
Button: $98.90
SB: $203.07
BB: $97.50

Pre-flop: (6 players) Hero is UTG with 3[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/heart.gif[/img]
Hero calls, <font color="#cc0000">UTG+1 raises to $4.5</font>, CO folds, Button calls, SB folds, <font color="#cc0000">BB raises to $19.5</font>, Hero calls, UTG+1 calls, Button calls.

Flop: 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] ($78.5, 4 players)
<font color="#cc0000">BB is all-in $78</font>, Hero??