Best hydraulic clutch set up?

I’m no expert but feel free to PM if you have any further questions. Eric.

I would love to PM, but my inbox is full and I cannot figure out how to delete??? lol

Anyway, on the Hydramax bearing, the collar you said is too short, can one just machine a spacer behind it to make up the distance? Or does it absolutely require the new piece from American Powertrain?