Dimensions for 944 hub machining

[Sunroof53]

Hi,

I am buying some brakes from an 86 944 (single piston ).Has anyone got a drawing or dimensions to modify the front hub for a ball joint beam.I probably could work it out but as this is a popular mod i am sure somone has the details to give as close as stock wheel offset.Also can you use the porsche bearings for the back as well as the front .I am aware that you have to make a sleeve for the front (outside) bearing.
I have done some research but cannot find the hub mod dimensions.

thanks in advance.