Pitch size makes no difference but tooth count does, inserts are made to tooth size so you do need the right one.
I think I've sent you a PM, not 100% sure I've done it right! Would like to take you up on your kind offer, the sprocket will take a disc.
I've not received your PM. Try again? PS. How many posts have you done? I read somwhere else that you need 20 posts to be able to PM someone.
Have you looked at your profile page ? I found a couple of messages on mine that I knew nothing about. Andy
