Hi -

I am trying to get from the east coast (BOS or JFK) to Amsterdam, leaving May 19, return May 23 or 24. I have a bunch of miles from different programs and would like to book an economy and upgrade to business (or first). Any thoughts on the best way to do this?

Here are the miles/points I have:
AA 165K
Delta 75K
BA 55K
Amex MR 100K
Chase UR 75K

Thanks!
Gordon