You know, like on Project Binky, ‘Cardboard Aided Design’.
Joking apart, you may struggle Bejy. I would guess if anyone knows,
@Ben is the 70 series guru but I’ve never seen him refer to one (except the above

). Whenever I’ve done CAD drawings for the 80, I’ve had to measure and make my own of the bit I’m working on and it’s a long and laborious process. Better to find a University with a laser scanner and give them a project, or failing that a scanning company but that’s easier said than done.
Good luck with it. If there are any specific areas you want dimensions of, maybe members can help there.