rolling arches,lowering and what rims for a 4 stud skyline?

I Wana roll my skyline ches to put a nice set of forged wheels on it.Shes only the 2 litre model so Might only put 17s on the back Any advice on first of all how to roll them myselft and what would be a good choice of springs and rims for my daily driver skyine.Don't wanna have it rediculously lower and un drivable.Was hoing to get away only changing springs.Had coilovers on 180sx before and it was practically undriveable through leitrim!:p

Do a 5 stud conversion lad, way better choice of wheels and all..