small bolt pattern disks to big bolt pattern

Hi,

I have a 69 Valiant with small bolt pattern and fron disk breaks (slant 6).

I wish to convert it to big bolt pattern. I have seen/read about drums to disks and the change list should be:
Upper control arms,spindles, rotors, calipers

Is it the same for me?
Could you please recommend some good swap kit?

Chris