A heads up on aftermarket disc kits.

I know this is an old thread, but doesn't your kit require different axles?

No. Mine only has you open up the mustang rotors .04 of an inch. Or you can turn the center register of the axle down .04 of an inch. Depends how you want to skin the cat.

Either pay big bucks and be dedicated to a company when brakes need replacing or do it yourself and open up options

On both our setups (one with the kit I posted about above) and my setup being Jeep Cherokee brakes, we had to open the stud holes in the rotors a tiny bit to fit over the large shouldered studs or the rotor wouldn't sit flat on the axle flange.
It was such a small amount a person could miss it.
A sanding drum on a moto tool did the job easily, as like I mentioned it wasn't much.

Depending on the caliper types a person may have to switch bearings to the green style (for non floating calipers.)
Floating calipers can run stock bearings and C clip axles because the caliper moves with the disc.
Those kits where the calipers have to be centered on the rotor are not the floating style.

I can tell you the Jeep floating style work great on my 8.25 with C clip axles and I noticed it takes a lighter pressure on the pedal to stop than it did with the drums on the back.
I used the stock disc/drum power brake master cylinder with no other changes in the brake system, and I have layed into the brakes pretty hard a few times without one end locking up tires faster than the other.