I've got some xxr wheels for my 03 cobra vert stock suspension for now, and despite alot of searching I can't find the exact answers I'm looking for so hopefully someone can help. I have 18x9.5 (275/35/18 tires) and 18x11 (315/30/18 tires) both with +20mm offset and I don't know what's all needed to mount these? Do I need extended wheel studs? Hubcentric rings? If so is the 70.5>73.1 the correct size? What kind and size of lug nuts? Do I need spacers? I'll be ordering the mm low profile irs bolt and probably roll the fenders but just want to make sure I get the mounted safely and properly. Any and all help/info is appreciated!