After Market 4.5 inch A-body 8.75 Rear Drums?

Yes the B, E, & C body 8.75 backing plates and drums will work with my 4.5inch axles,
I was checking to see if a company out there might be making 4.5inch bolt pattern 10inch drums that would allow me to use the original backing plates and brake hardware from the 4inch bolt pattern 10inch drum!