I don't know what the lowest mileage on offer is but I just priced your selected itinerary together and it came out at 105,000 and $75 in taxes/fees. I believe US-Asia lowest mileage is 60,000 so it may stand to reason that the opposite is the same or very close.
FWIW, I tried to look at Continental and United for this trip. Continental's website didn't find any flights for the proposed itinerary and UA's website doesn't seem to allow multi-city booking for reward travel.