Internals of Aciera F1 Simple Dividing Head

I cannot find a reasonably priced dividing head quill for my F1 (have been looking) so I am thinking of making one. I have to swivel base and the tailstock plus the disk with 60 notches. Just missing the 35 mm quill. Fortunately, the manual has a nice scaled drawing, which is helpful for the back end. I would be grateful if someone could provide info on the quill (spindle) of the dividing head. One would have had to take it apart to see the insides:
1) if the front cone is shaped like the back one ie taper of 20 degrees
2) diameter of quill body between cones
3) steel or bronze cones/bushings?
4) any other insights and measurements appreciated.

Thanks!

Daniel