Small update,,
while I wait for a sump from the states to clear customs I have decided it needs bigger front brakes.
I had originally fitted brakes from a Cosworth 4x4 but I noticed that my wheels could accommodate bigger. After a few trial fits the biggest I can get in are 330x28mm AP 4 pots, I have drawn up the brake bells and will get the alloy bells made this week, then I have to make alloy calliper brakets..
The original Cosworth conversion:

A few candidates:

The chosen disc and caliper next to the Cosworth ones: