Got the notorious exhaust leak from the exhaust manifold. My 69 had the same thing and mad the spitting noise when accelerating. Once I had it tightened back down, was smooth and quiet.
Have you figured out where the rattles are coming from. Nothing spoils a good car more than rattles iam glad I got the stainless steel version of your watch, I think less showey is better. Iam sure you will agree when you see the video. Regards from Australia.
The sound is I believe a combination of the shift boot and the insulation squeaking when you put it into first. Probably an easy fix, but it didn't bother the current owner.
Yoo man heb je ook whatsapp of insta ofzo waar ik je op kan bereiken merk dat ik heel weinig over italjet kan vinden misschien dat je en groep hebt ofzo er voor