Checked derailleur alignment and it seems ok, also took out the hanger (aluminum) and it is flat. Using a 10-speed Shimano Dyna-Sys MTB derailleur (RD-M786) with a Shimano SL-MS41 friction/6-speed SIS thumb shifter. Going to use friction mode until I can modify the pull ratio of the derailleur from 1.2:1 (MTB Dyna-Sys) to SIS 1.7:1 using a small piece of aluminum bolted on the lever arm (as done in a German MTB forum so you can use newer Shimano clutched derailleurs with older SIS stuff). From what I can see if the derailleur is aligned properly then I might have to shave down the lever arm a bit without damaging the functionality to clear the hub motor. On my other DD ebike with a Shimano 9-speed non shadow derailleur I clear just fine but it seems that the shadow plus derailleurs don’t have too much room here.