What disk brake upgrade for a 74 duster, not Wilwood

I have a 74 duster in Australia and will be doing a 6.4 hemi swap. I potentially have to upgrade the front disk set up, however is there a standard brake upgrade or all after market like wilwood? As my car will be engineered, some engineers dont like engineering after market products with the brakes.
So my question is, is there a mopar upgrade that is from a standard car?
Also all the standard rebuild kits look to be rubbers only do they not sell the pistons in kits as well?