Disclaimer - didn't read any replies yet.

If I thought I had even a small chance to buy the button preflop, I would try even though he is loose/passive. With such a connected board, I would wait for a safe turn card to raise MP3 to face the field with 2 bb's. Is it standard by most here to raise the flop? As you played it, I probably play the turn and river the same, as I would also think a bidding war would explode.