Wheel alignment for lowered '93 300E (2.8)
 

Can someone offer me a solution to this problem? I lowered my '93 300E(2.8) by about an 1 1/2" both front and rear (I do like the firmer ride and more control especially on the highway) now need to do the alignment because of too much negative camber (I will install the adjustable camber arms for the rear form Delsing motorsport). What specs should the alignment shop use (the dealership refuses to use anything but the factory specs for the regular height car) : 93' 300E Sportline specs or '92 500E specs? Or should I go with the factory specs and just have the camber set between 0 and - 1?
Thanks for your help,

Alex