I started on the DREADED door!!!
I really don't like this door, But you have to have it to gain access to the electronics in R2.
The A&A frame comes with the door hinged by a threaded rod, But it doesn't work that good.
So I started framing the skins to allow the door to slide into place and I'll add magnets to the door frame and the new skin frame to hold it in place.
As you can see I ran out of aluminum near the bottom of the skin.