Well, as long as you have the correct flange bolt pattern, they will bolt up.
If not, you need to index and drill new holes, then machine the boss out so the nuts are seated flush and in.
There are three bolt patterns on nines. At first I though the Versaill came only for the 2" pattern, but I have heard from someone that they also came with the 2 3/8" pattern.
It does not make a difference if you have the ability to drill and mill.
The other problem that appears in this installation is the bearing seat and depth. For some strange and wield reason, the distance from the axel face and the support bearing will change.
On one installation it was 3/8" deeper than on a previous job. This will make it necesssary to find a rotor with the correct hat and diameter.
I found the rotor and then milled the caliper anchor so the pads fit all of the surface.
Once I was done, they were/are great!
What I have found is a lot of guys leave the grand canyon between the caliper anchor and the rotor face.
Once the pads wear down, they slip out and you get break failure.
Yes, I did machine my parts to make the system work on my car.