A "Sportline" version of your car (gas model) runs -1.2 degrees, so LOTS of negative camber is potentially allowable.
The first thing I'd want to do is to set both sides alike, i.e. both at -.9 (ideally with me sitting in the car). Usual suspects to bring your car back to OE would be lower control arm bushings, ball joints & top strut mounts...they are the primary wear items (but 100k sounds a bit early-just get the freebie alignment re-check; tell them the car "pulls")
"If everything seems under control, you're simply not going fast enough" --Mario Andretti
1995 E500 street car
1986 Porsche 944 Turbo S track car