Couldn’t speak to AC other than to say I fixed mine by removing a spacer/washer to close the gap between the compressor clutch and flywheel (and the dealership said it needed a new compressor)

For the other stuff, I just did my front control arms with this bolt-on kit. And before anybody says ‘but that’s not Subaru branded and won’t last long’, my subaru branded bushings and ball joints were toast at 80k miles, so what’s so special?