Keep an eye out at Sportsman's Outdoor. I picked up a 5" FDE 2.0 with free shipping for cheap. They've got all models available, including threaded barrel models for the 45 2.0.....just no FDE yet.
Thanks for the heads up, I will bide my time and keep my eyes open as it's no rush. I liked the feel of the 2.0 and the 45 m&p shot well last time so it's something I have considered.