Source your Panther footage from those. You might be able to chromakey out the Panther from certain shots if he's on a flat color background or something, and put him on your own background. For Return of the Pink Panther, Richard Williams and Ken Harris often put him on black, so that's easy enough to reconfigure - you can steal your Clouseau from those films.
Come up with something original from all the Panther animation that's out there. Use Return and Strikes Again as your basis.
Give your new film a new title. I don't like "Facets of the Pink Panther" though. Not catchy.
So you two do animation? Nice. So do I. You'll certainly need to draw/animate SOMETHING for your new titles, probably the titles themselves and their lighting FX.
Williams' animation for Return of the Pink Panther is a masterclass in lighting effects, as usual ...