looking for input for upgrading Jaguar MK2/3.8S single master to dual...

[primaz]

While my brakes are ok, I would still like to further improve them.  Does anyone have any input on upgrading my 1963 Jaguar 3.8s from a single master cylinder to a dual master?  Also while the 4 piston Wilwood is an improvement I would like to upgrade to a 6 piston with bigger vented rotors.

I appreciate any suggestions