Another 8-3/4 Axle Question

Hello. I’m new to all things Mopar. I recently purchased for my 72 Duster an original A body 8-3/4 rear end. The whole assembly was removed from a car years ago and was stored inside. The rear brakes are the stock 10 x 1 3/4. with the flared or bell style drums. The problem I have is the axles have been drilled as well as the drums to large bolt pattern. The drums look fine. But I’m not crazy about the drill and stud change on the stock axles. Who if anyone produces a large pattern replacement axle that will allow me to retain the stock brakes and the drilled brake drums? . The wheels I would like to use are the larger 5-4.5 pattern I’ve read many other posts on this but I’m still confused. Thank You.