Hi Rockeyes,
This is amazing and a pure gift for the community. I just found this thread. Don't worry I will try to help you out. I succesfully loaded the collective into Fusion 360 and I have mediocre modelling skills so I'm confident that I can make it work with all the knobs and povs. I do have experience with 3d printing and making my own joysticks/buttons/knobs and even own povs., I connect them via mmjoy or arduino joystick library.
For now I just upload the .step file for other people if they find it helpful instead of .sldpt.
https://drive.google.com/file/d/1N9wGX0pmRpZzh4THDVZeDqhtWYIyXW-i/view?usp=sharing
Happy modelling and of course flying.
In the coming weeks I will share my progress.