Tall Balljoints from
www.scandc.com will correct the camber curve while retaining the stock spindles (which means you can keep your brakes). They will lower the car ~1/2" however.
They (or any "tall" spindle) may not work with the CPP A-arms though, as those arms have the balljoint plate mounted at an angle for stock height spindles, which unfortunately won't work if you have corrected the camber curve as the balljoint may reach its pivot limits before the lower bumpstops hit.
Also, Guldstrand mod is not possible on an A-body frame.