Designed, installed and tested a new bracket for the Flexion E3D retrofit kit for the Smartrapcore series of printers. Mounts to the standard bolt pattern on the face of the head block and holds up the Flexion mounting block which holds the motor and the E3D hotend. I'm not sure if this would interfere with the inductive sensor as I don't use that on mine anymore, but worst case that would be a slightly modified mounting bracket if it did.
Located up on
Thingiverse.
Been able to print Ninjaflex at 60mm/s with this extruder. Pictures of prints are posted in this
thread.