At this point I am about to mill the counterbores for the cap head bolts to hold the spacer onto the wheel. Took ages to set up mostly because I'm still getting to know my mill.
Counter bores completed. I'm not sure I did them all to the same depth, I was getting tired and may have miscounted the depth I'll check today and correct if necessary.
Now I have everything set up I am hoping machining the pulley side will be less hassle.