Pundit, welcome to the club!
Unless you're tracking the beast, you might not see the benefit of the ATE powerdisc over an OEM rotor. Lowering the beastie would do wonders for the E34's agressive stance, 1.5 front, .75 rear seems to be just about right...here's more on suspension mods: Bruno's Site - suspension upgrades.
Looking forward to the piccies.
Cheers,
Duey