School me on adding brakes to my 8-3/4"

Guys,

I just picked up a bare 8-3/4" A-body housing from a member. Also got a good deal on a sure-grip 742 pig w/3.23 from another member. Now I need axles and brakes.

The finished unit will be going into a street car(Duster), mild 360, auto trans, driven a couple times a month if I have time.

Some say I should upgrade to 11" B-body brakes. Some say I may be able to transplant brakes from an 8-1/4" A-body 10x2.5" system. I'm looking to do whatever has the most readily available replacement parts.

Are there any considerations I should have when buying axles with respect to the size brakes I use? Who sells the best axles?

What consideration should be taken if I want to go with disc brakes? Any special prep to the housing needed?

Help me make this build as easy as possible.