This is actually the droid your looking for.
Only viewed the preview for episode 7 and believed this droid seemed amazing. I simply needed to try and get the model but cant wait to complete it when I get additional information although I have to add more details. The model is 1:1 scale with the head being about being same diameter as R2's. But this may be altered afterwards when we understand more about the droid.
Follow me on twitter @ https://twitter.com/lilykill1, and instagram @ https://instagram.com/lilykill1/ where you are able to remain up to date on my current jobs and releases.
If interested, join my group @ http://www.thingiverse.com/groups/design-to-print/topics where I plan to help anybody with anything I can with modeling or complicated construction like this layout.
Just completed the version to the top reference pictures I 've. Love.
Two piece models added.
head and body without stub end and add added.
hollow variations of body and head added.
Neck joint reinforced on single component STL
SolidWorks version added