In looking at them I don't think he had much outside help. My opinion is meh, seen it before, will see it again.
Now I do know of one celebrity who hired a team to help him photograph his friends with a 8x10 view camera and published a coffee table book of them in the early 80's.
All he did was push the cable release, he had a camera tech to set up the camera, reload film holders, check focus, and even cock the shutter. Also hired a cinematographer buddy of his do the lighting.