option A:
go buy a name brand front and rear camber kit. (most expensive, but most reliable)
option B:
go buy off brand (ebay shit) front and rear camber kit. (made cheap, might last you, might not, you pay to play....)
option C:
go order a front camber kit either off brand or name brand and using a bolt and washers, camber out your rear spindles. (cheap fix, cheap car.. its your image, not mine)
option D:
leave the negative camber and replace your tires every 15k miles..