i got 4x4 escort cos brakes on the front of my car, cam with disc etc froma guy on here, they bolt stright on-ish, all you need to do is space the caliper out a bit, about 5 mm or so, i used nice thick washers and longer bolts
what ever thickness of wahsers you get get bolts that will fit , so you can see the base of bolt as you would with normal calipers, think mine that i used were 30 or 35 mm, cant remember now as it was a while ago, but dont use the old bolts cos they will do up but there not really long enough, a bit of thread lock wont go a mis too.

some say washers are dodgy,but i cant see why they would be, just a pin when ya take caliper off and they fall out .
dont be tempted to get loads of thin ones though.
thinking about it if i am remebering right my washers are 2 mm thick each and ihave 3 for each bolt, only as that was all i could get at the time