I think it’s great news you are having a go at it! I really hope you somehow get it to work.
I think replacing the wampa glimpse as it walks past the ice formation is probably the easiest.
That approaching shot would be harder but there are options (I think it could be just cut alltogether and removed)
The third shot of old sad eyes is ok but…
One can dream… I wish you the best of luck with it I hope you can pull it off.