Some later 2.0 Mk5s have the bigger bearings with the smaller diff just to confuse matters slightly
Rear discs = escort/sierra front non vented discs, sierra/granada rear calipers, machine the hub end of the halfshaft so the disc fits over it and use an escort Mk5/6 RS2000 H/B cable, for caliper mounts try raldes or capri sport

costina- just did a shoot at brunters for CF , shame you wernt there
there was a selection of bloody quick cortys you'd have fitted in well