You have more travel in the pedal as you now have more fluid to move thru the RT132 twin pot calipers. IIRC the T18 master cylinder is an a direct bolt on upgrade for the TA22 unit, and you go from 11/16 to 13/16 in size. (Corrections anyone?).
No vented rotor is a direct fit with a RT132 strut and caliper, as said before, it won't fit inside the caliper. BUT, a Peugeot 605 273mm diameter vented rotor with LN106 Hilux 4 pot calipers are a direct bolt on.
Matt - I have not found this problem myself, but maybe RA23 knuckles will fix the problem.