SSV monaro rims on VZ executive

[vz exec]

ive just bought some 18" SSV monaro rims and im thinking my cars gonna be very high once i chuck them on my vz executive.
just a question, im gonna lower the car with some springs but i needa advice, should i go all out n get coil overs or should i just get some super low king springs?

[Lumps of cheese]

If you just want the lowered look then springs will do, save yourself quite a bit of $$$.