coilover shocks

[terrellautosports]

any of you guys that are running these i need your help. i need to know what spring rate you are running, what length spring, what shock compression and stroke? and if anyone knows where i can get a good set as cheap as possible. or if any of you have a set for sale.
any help will be appreciated.
i am getting everything lined up to use coilovers on an IRS for my wifes truck.
it is a corvette rear end.

thanks in advance.