I'd be checking with someone local in the know Ollie, because even with the brake package you want
those cylinder's are still way to big, i help out with an R33 GTR in Targa Tasmania which has X champ
car Brembo 8 spot's on the front and AP 6 spot on the rear, and it run's 11/16th front cylinder, and
3/4 rear cylinder, and even then we had to change to a softer pad because the pedal was a little
on the firm side.
And yeah that is cheap for your pedal's, did they come with cylinder's???
if not checkout these guy's, i buy all my brake gear off them, they're UK based so it take's 3 or 4 day's
to arrive, but very good price's...
Cheers Jon
http://www.compbrake.co.uk/