That sounds like a great modification for the New Holland CR11 to adapt it to the European configuration. By widening the front tracks and rear wheels, as well as deleting the rear frame, the harvester will likely be more suited for the European farming conditions. The required mods you mentioned, the MacDon FD2 Pack + Demco Trailer Pack, will probably add even more functionality and customization options to enhance the gameplay experience. It's always exciting to see the community coming up with creative modifications to improve the realism and diversity of equipment available in the game. I hope this adaptation works well and provides an enjoyable gaming experience for players looking to use the New Holland CR11 in a European setting.