Big Bolt Pattern 8 3/4 Brakes for my 68 Darts conversion from SBP

Like the title says I'm looking for the big bolt pattern brakes (backing plates and drums etc) so I can convert my small bolt pattern A Body 8 3/4 to the big bolt pattern. I'm planning on purchasing a set of Moser axles and I've read that I need to upgrade to B Body backing plates and 10x 2.5 brakes I believe it is?

Let me know what you've got. Thanks!