Uberslider

My car has the PP 1 wheels - 19x9x45 front and 19x9.5x52.5 rear. I posted a question on the ability to put the rears on the fron for a ballanced / square setup. I have read that the rears with 275-40-19 will rub on the strut and that a 5mm spacer will make it clear. Does any one have a link to where I can find the offset and tire size info on this car? I would like to run 285s on all four corners.