PLO8 MTT - A23Tr in BB facing a raise

[franknagaijr]

Stars 9:30 PM Donkament. Villain has shown good post-flop judgement, coming out ahead with marginal hands. My notes on this player read as follows:

PLO8 utg pr @30 w/? HU J38r flop and bets on AA89ssA
raised A347 MP to 3BB @30
calls PR @150 w./2358ds


Poker Stars
Pot Limit Omaha Tournament
Blinds: t75/t150
7 players
Converter

Stack sizes:
UTG: t3079
UTG+1: t3283
MP1: t4841
CO: t3415
Button: t6171
SB: t1435
Hero: t6744

Pre-flop: (7 players) Hero is BB with A[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/club.gif[/img]
2 folds, <font color="#cc0000">MP1 raises to t450</font>, 3 folds, Hero calls t300 <font color="aaaaaa">(pot was t675)</font>.

Flop: J[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/club.gif[/img] (t975, 2 players)
Hero checks, <font color="#cc0000">MP1 bets t975</font>, Hero ...

q1) Preflop call was obv?
q2) Calling the flop bet is okay, marginal, or bad?
q3) If calling the flop, what's the line on hitting two pair on the turn (with NLD, obv)
Q4) if calling the flop, what's the line on hitting the flush with NLD?
q5) If calling the flop, what's the line on hitting the flush with a high card?
EDIT Q6) If calling the flop, what's the line on hitting a low card that doesn't improve hero's hand otherwise?