I do have a door mostly mounted but not tight or adjusted.
It really is a two man operation. Particularly if protecting good paint.
I did confirm that this may be done without cutting new access holes into the inner sill.
Cutting a lower access hole would make it simpler but it really is not too bad using the openings at the rear of the wheel well.
I will use slightly shorter bolts in the future.
The bolts are inserted from the door.
Lower nut may be tightened from the original hinge access point.
Top nut is not hard to reach from the wheel well.
Painters tape helps to hold shim washers in place while juggling the bits.
I may get slotted washers to make height adjustment easier.
The system provides a lot of adjustment, more than will ever be used.
I need to find a helper so that I may do a documented installation.
Wheel arch pics, not the best camera.