Find a wrecked 2wd xk with a d44 rear and use that. Infinitely more gearing/carrier options.

Tcase and trans are fine. Computer is fine (for qti and qtii)

Yes it will be a very expensive build.... youre not gonna SAS a commander for cheap. Done smart, I think it would be under 10k though.

Consider superlift+rcv axles+gears = $6ish... and thats theoretical since we can't regear... so its not completely unreasonable.