In past, I’ve scanned parts of over-size material and manually “stitched” them together in a paint program (some cameras include stitching software – don’t know how accurate they are). Be sure to include a color chart on your scans for confirmation and for color correction (if needed). The same is definitely recommended when using a camera or cell phone.
BTW, how many pages are devoted to 2001:ASO in The Stanley Kubrick Archives book? Do you have The Making Of Stanley Kubrick’s 2001: A Space Odyssey? Does TMOSK2001ASO have all of TSKA and more (or is anything unique in TSKA)?