Adjustment for positive Camber?

The only answer I can give is yes.

Procedure is this:
Loosen all four nuts, holding bolts in position.
Equally twist the cam bolts to move arm inwards. You will just have to look at the cams relative to the tabs and see which way it goes. Front and back will be opposites, and driver and passenger side will be inverted so you just have to reason it out. Caster will change, but you want to try to move the arms inward equal amounts front and back to not completely bobo the alignment. On the other hand, it sounds like the alignment is bad enough that you should probably measure all the specs and start from scratch. Up to you.