you shouldn't have to mod the taurs fan much at all to get it installed. I have done two so far. The one was a dual speed, and mine is a single. The dual, all we had to do was cut a little plastic loop off the shroud, set it in the lower shroud, then put some self tapping sheet metal screws through the taurus shroud and into the aluminum stiffening rib of the radiator. Then run your wires and sandwich it w/ the upper shroud.
Mine is an old single speed, I had to offset the fan since the motor is so long in it. I took a jig saw and cut about 2 in one side of the shroud, then installed it and put three self tapping screws in. The motor is sitting about an inch from the side of the water pump pulley now.
I would recommend some type of weather stripping between the shroud and the rad to keep it from rubbing into the tubes.
I have to pull my rad sometime this week, I may take pics. Battery acid is eating through plastic tank on driver's side and it's leaking.