Why don't you switch to Alaska? You probably know you can fly non stop to Amsterdam via Seattle on NW/KLM (partner). You could also fly on AA (partner) with MRTC and have more space than you do on Delta in coach. As for the domestic trips, you can always fly up front on Alaska if you plan ahead enough. You will qualify for MVP with 15,000 on AS/25,000 on AS and partners. MVP Gold is 35,000 on AS/50,000 on AS and partners. Your 4 trips to Amsterdam will generate approximately 43,000 miles - not too far from the MVPG requirement.