The wilwood kit is less than 700$, and you also need the brakehoses. Otherwise it required just adapterplatess between the spindle and caliber adapter, which I made out of 3mm aluminum sheet, also had to drill and tap one bolt hole to the spindle and that's baout it. I can take pics of it if interested, overall it was a one day job including the "design". Oh yes, and almost forgot it saved over 50 lbs over the '73 factory discs.