Which street/strip front suspention to buy

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I want to upgrade my front suspention and go to a coil over setup. I have a Mustang 84 that have a best of 12.45 @ 111 Mph.
I want to optimise my car for the strip but want to keep a minimum of streetability. I want to use the tokico illumina shocks or the KYB AGX. My stang weight 3140lbs with me in the car. I have fiberglass hood and aluminium head.

Here is my questions :

1 - Which coil over kit will work with the tokico or kyb.
2 - Which lenght and springs rate to use.
3 - Which caster/camber plate to use ( Aluminium or steel )
4 - Can i still use the factory A-Arm.
5 - Do on track adjustment on the coilover will disrupt alignement

Tanks to help me buy the right parts