Somehow I don't find how to post something in here so i just reply. :-)
So here is my approach on the Orion Nebula. Finally shot with my new Skywatcher Newtonian and an unmodified Canon 7D Mk II.
30x 120s and 40x 15s.
Scope: Skywatcher Explorer 150/750 PDS
Mounts: ES EXOS2-PMC-8
Cameras: Canon 6D, Canon 7D Mk II
Misc: ZWO ASI120Mini Guide Camera, ZWO 30mm mini guidescope
Software: Pixinsight, Photoshop