Don't worry at all about camber being out of spec slightly. Assuming your ball joints are not actually worn out, you likely won't notice the camber being out. Now, if it's radically different than the other side, that you might notice, but most likely one side is barely within spec and the other is barely out. Very common. Also, keep in mind that your stock ball joints are totally crap and will wear out soon, if not already, with big wheels and tires. Do not replace with stock ball joints! Go Synergy ball joints or one of the other top shelf aftermarket brands.