Haven't heard from Kev in a while (even though he has my car) but he gets them done really cheaply up in Ipswich/Brisbane. He told me that the axles don't actually need to be resplined (from memory). I think the short side is swapped to be the long side and the long side spline is normally long enough to cope with the extra length just being cut down (i think, that was the trick?).
But yeah. Take a drive north and camp on the beach, have a few drinks by the fire, drop off the diffs - repeat to pick 'em back up and even then you would still have change. Prices i got quoted in Newcastle were around 1500$. Half that is a good price and Kev's prices were(?) better still.