I would prob do a pair of Dynatrac axles that are for a JK, sort of like you mention earlier. THe Dynatracs have upgradable components so it should be just as strong as anything else.
But you are right about the ring gear size. Actually, by the time I would have a built Dynatrac 44, I could get a built 9 from Currie. Or even better, a built and shaved 14 bolt (prob the cheaper option)