ITA Matrix seems to be having issues but this is wide open doing mulit-day search on Delta.com. Lots of open dates with at least a few days stay. Again, this is business class and you can mix and match DL and KLM or whatever you want to fly (like a 747 with new business class from KLM). What a great vacation and way to top off your MQMs for the year! Here are the numbers with a HT to FT on this one!
Cost $1,573 in business / 1st class
22,444 MQMs at 7 CPM
Bookable on Delta.com
DM yields a very big 41,146 Skymiles per CWSI.net!
These prices go well into summer next year. The MQMs will be the same but the Skymiles much less clearly but you are basically getting a coach price and flying business class! Amazing!
EDIT: Seeing prices up and down the west coast for just a few bucks more! EXP: San Francisco to Barcelona $1600-ish