Are you sure you want to play 2 1/16" balls?
My 10' Brunswick Centennial (used to have) was shipped with 2 1/8" balls and it had 3 1/2" corners and 4" sides and my 6 x 12 plays 2 1/16" and it has 3 1/4" corners and 3 3/4" sides.
Maybe someone here knows if ball size is a function of pocket size.
2 1/8" snooker balls without numbers are readily available.
When I had my Brunswick we played with 10 reds most of the time and that made maneuvering around the black easier.