Possible to adjust rear camber myself?

[ericweller]

Hi,
I've got a 2002 986 with too much negative camber on the right rear. I found this out after removing the rear wheel to do some thorough cleaning. The inner portion of the tire was down to the threads and belt! I replaced the rear tires with Pilot Sport PS2s Thursday, but can't get in to my Porsche shop for an alignment before next week. Problem is...autoX on Saturday. I don't want to miss it, but I don't want to chew up my PS2s.
Any help would be greatly appreciated.

Thanks,
E

PS the only tools I have are a pair of pliers, toenail clippers and a butter knife.