Imperial Rotors

I was looking for parts to redo the front brakes on my Imperial. I have looked everywhere and cannot find anything that fits that is specifically for a Mopar.

I have found in my research that a 1972 Buick LeSabre is the same on paper as a 1972 Imperial as far as brake rotors go. I plan on using pads and calipers that are Imperial parts but I want to make sure that I have a plan B if I can’t get the rotors cut.

Thank you.