I did a DL run simlilar to this a couple of years back,
BCN-CDG-SLC-ATL-EZE / EZE-ATL-DCA-CVG-MSP-AMS,
All in business first, around 17000,- NOK/2015 USD.
I have also found some interesting fares from my hometown of AES in Norway :
https://www.google.no/flights/?f=0&g...AMS0DL124;sc=b
Would people consider this a decent business fare ?