No mention of your budget in any of this but as you mention insurance considerations I would suggest it may be conservative ?
If 280hp will suffice I would definitely buy the E36 factory car that is for sale on here and get the best price for yours.... if not then drive in and out of here having paid a big chunk of change... turbobanditen.se
Now! thats what I'm talking about..light v6 unit...perfect weight distribution and centre of gravity for a w201 or w124 chassis..would require a stand alone ECU and about £500 worth of rolling road to get it spot on...
I cant believe the way those guys are handling that engine...no clue!!!!!!!!