[nickmarshallvfx]

You are lucky enough to be doing the camera move before the final painting which will make things a whole lot easier for you. There's really no reason why this needs to be super difficult. What software are you going to use to do the projection? You may need to do a second (or even third, but I doubt it) projection to patch in the places that your projection is missing.
I like your concept, will be interested to see what you do with this.

N