wheel spacerson a s14

[dorift maestro]

i am having trouble mounting these bbs wheels on my s14 its 5x 114.3

i have z32 brakes on the front and it touches the wheel and on the rear it fits able to tighten the wheels but the studs are seem to be shorter

than the stock wheels set up , maybe the offset of the bbs? think rear is 17x8 +40

so what is the good size spacer you guys recommend 15 mm 2mm ?

also do i need longer studs?

any suggestion will be nice

thanx