Thanks. We are going to book the whole thing (round trip) at one time so, according to Cathay Pacific and Asia Miles it will be 80,000 per person round trip. Transferred the miles from starwoods and we will probably book the whole thing in the nest day or so - so far can upgrade from K or H (economy, not premium economy). Seemed like they have about 9 seats in business that they allow to be used for these upgrades. After that all the rest are standby on the upgrade list. Still not sure what the chances are.