Lets talk Struts and Shocks!

['90RPS13]

So I am wanting to build my own coils. Reason being, so that I can have the ultimate tuning/adjustability. I will be using Ground Control Coil Sleeves and ERS Springs. But I have a few questions:

1. What Strut/Shock combo should I use? I have heard countless positive statements towards Koni Yellow's. But I would like to hear some other opinions from people who have used GC Coils on other brands.

2. Car is going to be strictly tracked towards Drift/Auto-X. What spring rates would you use? I am using Eibach ERS Race Springs.

3. What all is required to mount GC Sleeves to Shocks/Struts?

4. What will give me a 2-3" drop?

Pretty much, what would be a good/solid setup. Its not that I can afford a coil system, its I want to be able to match my setup and match it perfect for my car. So comments like, " Just Buy a Coilover from Tein, blah, blah, blah" ARE NOT NEEDED. Stay the hell out of my thread.