It's funny you should mention that. I'm in the middle of rebuilding a Q-jet carb, but at a standstill because there seems to be too much play in the primary throttle shaft. It's pretty much done except for rebushing the baseplate.
If you have a decent source for the parts, or have extras that you'd be willing to sell, I'd be interested.
OCD can be a good thing. I have the bushings and the screws(and put my hands on them🙂) If you have not done this there is a couple of things you need to be very careful of. Private message me an email address and we can correspond that way and better yet lets touch base on the phone so I can send you the stuff and walk you through it. I am sure you can do it but I have done this many many times when I had my shops and it can be screwed up quickly. Longroof79 you are a great contributor to this forum and I will be glad to send you the stuff.