Removing the mirrors is so easy a caveman can do it. Don't forget the phillips screw behind the door handle on the inside. Remove the little small round cover and you will see it. Then just pull out that door handle trim. After you do that and remove all 6 plastic screws just lift the door panel up and pull it off. Super easy and FWIW the power window motor is VERY easy to access if it quits.
Me personally I love my towing mirrors and I ain't parting with em. And I traded my stockers for em so I came out smelling like a rose on that deal.