you can get by with a little bad,,, a small lip isn`t really what you want but if you don`t have a better one then have an ask around to see if you can find a better one, but if all else fails then use what you have
however, the later A+ diffs are a better bet these days as the thrust washers have a "tang" (yes a bitter taste

) & that "Tang" locks them into place so they don`t spin & ruin the carrier
so you can use the A+ carrier & thrusts ,,, or,,, use an early diff carrier & grind the space for the Tangs into them & use the A+ thrusts with the early modified carrier