Thanks guys. It will still take some time, but I'm getting there. Proof of concept is ready, but I will reshape it to reduce printing time and space needed inside Grogu.
Yes! Was hoping someone would bust out the 3D prints for their mods. I was too nervous to screw with the head, so this is perfect. I was already starting to sketch jointed arms and legs for the body that had a channel running through them for the armature wire, but my CAD skills aren't so hot. Hopefully something like that will be next?
I'm not using CAD
I'm using 3ds max, since this is what I know. I dont like the idea of only using wire for the arms too. I don't want noodle arms that can bend at any point
They should only bend on the elbow and shoulders. You could get away with a aluminum or pvc tube for the "bones", only allowing bending at given points.
Something like this:
Here are the pieces for the version 1 (not final shape). I'm going to widen the hole to the front, so the can tilt even more to the front. Also the bottom will get narrower, due to the internal structure of the body.
How it will work:
1. Take the template (there is a F for fron on it), put it on top of the body (head removed), tape it or hold it and mark the INSIDE of the template with a sharpie. This way you'll get the perfect hole for the housing to fit.
2. Cut on the outside of the marked line
3. screw the ball to the housing with 4 screws (holes are pre made)
4. Put a O-Ring into the socket
5. Put the ball into the socket
6. Insert housing (you might have to open the whole body, I will test it for you). There is a notch around the housing like on the head of grogu, so the body will clamp and hold it tight
7. Slide in the head (front to back)
8. Put on the bracket and screw it with 2 screws
If you have suggestions, just let me hear them. Otherwise I'm gonna optimize the shape and finalize it. I will post a more in depth step by step guide.
Cheers,
Tomorrow marks 1 month since they sent me the "10 day" notice and uh, well evidently it's now been a lot more. Kinda peeved, I emailed them and was told "our inventory is currently in transit and should be arriving at our warehouse any day now though it seems to be taking longer than they first estimated." 
