@NathanR, Yes, instructions would be great :-) along with all sub files :-)
Your pic above came from here, not sure you have this link.
https://www.hq.nasa.gov/alsj/a13/images13.html
An idea for the hook could be 1 round tile back to back with 1 of these
https://www.bricklink.com/v2/catalog/catalogitem.page?id=189#T=P
Carefull, they are a bugger to pull apart once connected.
@NathanR, I am debating your 1 stud move since I have not started yet, thinking I would rather go 9 wide so I can use the girders