you have a cassette hub already right?
it's a seventies hub, but you want an 11 tooth driver.
so you need to get the seventies 11 tooth driver.
some hubs/drivers are interchangeable, I think, like ody drivers fit someone elses hub, but not sure which ones.
I have a Ody cassette, binned the driver with changeable cogs and put a one piece 10 tooth in.
but both were ody itesm.