Front and Rear Suspension. HELP!!

[NorthShoreChiMM]

Whats Up guys,
As I have told in previous posts I am getting a new suspension setup but have been having trouble because I can't find rear shock and spring set up for our car.
The air rear went out from the previous owner and he has springs and shocks in the back. ITS LIKE DRIVING A CRUISE SHIP. I need an anchor to park its so soft in the back.
I need front and rear springs, I am probably going to use monroe gas magnum severe shocks, NOT doing air. Appreciate all spring and shock setups. I looked up custom coil springs from ks and couldn't find anything?
-And im doing rotors later on in the month, for the rears can the parking brake assembly be taken out completely. Mine is broken and I live in the midwest=dont use it. Could I just take it out and put in new cryo slot rotors. Thanks guys. Mike

[Turbov6Bryan]

I've seen a few p71 vic guys running 2010 and up mustang lowering springs

Type crown Vic gt500 rear coils into google, or p71 gr500 rear springs. It really drops it down

[RubberCtyRauder]

CSS will make springs custom, but you need to provide info to them,they don't stock Maraduer stuff and rear springs on a marauder are non existant in factory so it's all custom