It doesn't take long. 2x torx to remove the airbag and 1x bigger torx to remove the wheel. 5 minutes tops.
If the ph1 is the same as the ph2 its not 2 torx for the airbag.
Ph 2 just has clips holding it on so you just prize them off with a flathead screwdriver. Then unplug the wires and then as jesus says, size 50ish torx in the middle.
Be carefull with your SAS though
It's not though, which is why I said torx and not clips