my 13's cost me $700 which was expensive but looked fat as
15 x 7 and 8's are just under the $1000 mark i think 7's are about $100 cheaper than the 8's
any good tyre shop should be able to get them for you. performance wheels is an aussie company, they sell a lot of gay wheels, but superlites are hot!
there are 2 types as well an 8 spoke and a 10 spoke, get the 8 spoke