I don’t have an answer for you, but to weigh in with my experience. A couple years ago, We tried both the DIY buffing and the professional kind with the large machine on some old acrylic tanks.
While we were able to buff out some large deep scratches, the tank didn’t really look much better because the process of buffing essentially was to scratch away the glass with increasingly finer pads. It created a noticable and unwanted shine (like streaks on a poorly cleaned tv) that became distracting and wouldn’t go away.
I don’t mean to discourage you; just to regulate your expectations.