You have to buy a 150mm hub, which has a removable drive-side spacer to accomodate for the DOPE system. The Sun Ringle Lawwill/Abbah/Demon all have this. The one I'm using is a Lawwill
Rotors were to match the frame . The clearance at the back with that dope system is insanely tight, but there isnt enough flex for it to hit the rivets so it's all good. Will get some more pictures up tomorrow when my second Tech M4 arrives .