I think MG also did a GP7, I have an old catlogue to check. I had one of their SD9s. It ran around 48 inch radius with only a little noise. It was a good runner. I have a buddy who really likes brasss and traded me a new Sunset SD9 for it.
I also had a USH SD45, It would go around 52 inch radius on my main line as I remember. I traded it off when I decided to focus on nothing newer than about 1963. It did not fit my plans. It was a good runner too.