i got a great deal on a set of WEDS B-VILLENS 18 x 9 +22, 18 x 10 +29 that i can't refuse. Will be going on a R34 GTT. They said i need to roll my guards 10-15mm. Is this amount going to cause my paint to crack? Also will i need spacers to clear the brakes? Any other mods required? I need to know asap and if its worth the effort and pay a deposit before sum1 else snaps them up!