They re-assembled and the result is... good so far. The smoke issue I had before the overhaul is gone. I did some Scotch Brite in a sideways motion, as suggested here. Did it work? Yeah, may-be. I will check if it still burns oil later.
Though it cost $900+, my Monty is back. It got a new water pump, thermostat, T-belt, belts, spark plugs, etc. Next stop would be shocks?
BTW, the ABS indicator doesn't go off. I remember this thing need to be reset. How can I do...
Photos - removing heads

Tats
'95 Montero SR 3.5L DOHC