1st post for me, I recently purchased an 81, 201 and spent some time reading every iPad mounting post. I have an iPad min 5 in a pivot case. The yoke is where my Aera 660 is mounted so an yoke mount was not an option for me.
I used a modified Ram ball mount for motorcycle handle bars and mounted the RAM ball on the bottom screw for the hand strap at the door entry. Used a 2” Ram arm with the pivot base on the end. It works well and I plug it in to my GMA345 for power.