green vs taper axle bearing

well here's the issue i'm having. I want to order new axles from a company I found out in Colorado that sells proven axles that are bout $100 cheaper than the big axle guys. They want to know what dimensions I want the axles made to.

I have no friggin idea because not only do I want to run the tapered axle bearings but i also have a set of 11"x2.5" B-body brakes going on.

everyone talks about how there is more room from the axle tube flange to the wheel mounting flange on the B-body vs. the A-body axles.

So what do I tell this guy?

Most axle company's have an order form you fill out that asks you for certain information including what brakes etc and then they build them accordingly for your particular situation. One of the questions they will be asking you is what's the Brakes "Stand Out".