Pro opinions before coilover install
 

I am getting ready to have my Fortune Auto 500 coilovers installed at the end of the month and wanted to get some opinions. I have SPC front camber bolts and I ordered Whiteline rear lower control arms. My BRZ will be my weekend/auto x/ track day car so I plan to drop it about 2.5 inches in the front and 2.25 in the rear. I was looking into the Whiteline Roll center/bump steer kit, anti dive caster kit, steering rack bushings and was curious if anyone would recommend any of these? I want to get it all at once before I get my car orner weighted and balanced. Any input is much apprecaited.