B-body 8 3/4 axle in a Duster! Photos

I always heard the biggest question w/ the b-body housing is the available backspacing on wheels on the market.

Have you measured and determined what size wheel/tire you're going to use? If so, is the right backspacing available to make it work and take full advantage of the added room the offset shackles/hangers made?

If you can just go and get the correct offset rims, why do people spend $$$ on A-body specific rears for their cars? Maybe they don;t want to get new rims?

I have an 8 3/4 from my 69 Bee (to be replaced w/ a Dana for the Bee) that I was planning to have cut down for my 68 Dart. Does it really need to be cut? If so, I guess the easiest way to determine what length is to center it in the wheel well, huh?