You’ve probably seen my recent post related E3D on an ORD-Bot Hadron (find it here https://plus.google.com/u/0/+FrankHelmschrott/posts/NphfoBJqcHe).
I thought until a better solution comes up I’ll help myself so i quickly designed a mount for the E3D as a bowden variant. And also a mount that holds a Nema17 to the frame. I have some of these cheaps feeders lying around from Robodigg (http://www.robotdigg.com/product/70/MK7-Molded-Drive-Block) - these work quite well for me for 1.75 filament.
I havent built everything together so far as i have to reprint the Nema17 mount (had to finetune a few things for my printer).
As soon everything is finished and works for me i’ll post it to Thingiverse and opensource it. Maybe someone else can use it.
Feedback welcome of course.