a friend cut me the plate with his water jet. I was going to get him to cut all the holes too but that would of taken along time to draw in cad for a one off part. So I clamped it to transmission with the coupler attached and transfer punched the holes.
I was originally going to weld the center of the clutch into the coupler but i got the wrong coupler. It sintered steel. So I machined in a key way and pressed it in. Hopefully it holds.
A dead mini for $800 what a deal!