After looking everything over and doing some digging I came to the conclusion that using 65 mustang hubs on 240z spindles is not a cost effective solution for big brakes.
I am now looking into a ball joint adapter that bolts to the control arm of the 204z and uses press in 2014 mustang ball joints.
I intend to use this in conjunction with 2004 Subaru wrx coil over struts to allow the use of 5 lug 2014 mustang hubs and brakes. Which are 5x114.3
The intent is to have the outer wheel mount flange be pushed out roughly 35mm.... effectively converting our cars from a "zero offset" wheel to a "plus 35mm" wheel... aka just like the 300z and the 240sx, Toyota supra etc...
It's a front steer, rear caliper spindle just like the stock 240z, once I know what the bump steer geometry will be I will have a clearer picture of things.
Someone could use a widebody or flared setup if they chose to run a zero offset wheel, or use cheap and readily available 350z wheels and have stock track width.
Let me know if anyone has any input on this. Good idea, bad, etc...