You have no adjustability except for the front toe, I assume you have standard top mounts?
So just get as close to OEM (as when you lower the car on H&R springs which are quite low, it will naturally cause your car to camber).
If you fit adjustable front top mounts you can then sort out some camber.
The rear is a fixed axle, so only way you can adjust this is with shims.
So OEM will be fine mate.