Camber: I'm not sure if they are actually still available, but Parma/PSE used to make a great set of caster AND camber shims for the Old school front end. See if you can dig some up at your LHS.

Stormperson: I agree with you to a certain extent, but a properly set-up 12th scaler is not always easier to drive, as Ray pointed out in his post. Sometimes they'll be edgy and feel very light, on other layouts they may push just a bit. The key with 12th scale is making the CAR fast, and then YOU have to drive it, the way IT wants to be driven. 12th scale is easy to drive, but hard to drive FAST. In 12th scale line is king, and the set-up has to be maximized to carry speed on THE line. Then the driver has to keep it on THE line. You can set the car up super comfortably and drive around the middle of the track, and it may feel fast. But when you look at the lap times it's not. Consequently, you may make the car edgy as sin, stay 4mm off every corner, and think "Man that had to be a KILLER run!", then you check the times and it's just as slow as the previous run. It's when you find the perfect balance of Grip and Rolling Resistance, keep the car in the line that carries the most speed, and don't hit anything that you have a great run.

I think it's way easier to push a bad Touring Car around the track at a competitive pace then it is to get a not so good 12th scale through it quickly.