I seem to recall that somebody here (?) was searching for 2" abrasive rolls.
If you've not found them try:
They are an industrial jobber with a little bit of everything. Think WW
Grainger on a smaller scale.
They have a 2" by 50 yard roll for $22.49 in grits from 80 to 400
A catalog number to get you in the ball park is YV00405084