Ok, so here’s the augmentation of the legs!

https://vimeo.com/351709144
pw: fanedit

As a note, I thought about trying a removal, and I have the tracking pretty locked down, but painting in the details of the chair and balcony behind chewy is pretty tough without anything to work with. If I had a reference of what that chair looks like from the front, I could possible do a removal. I had to rotoscope Yoda anyway to keep his coloring.

Also, oddly enough, the original motion tracking (presumably by ILM) in the original shot seems off, and background bounces around as the camera tilts. This is easiest to see by watching the top-right corner towards the end of the shot. Unless this is supposed to be the platform bouncing?!