Just an FYI - the printed shop manuals for the V71 completely take up two 3" three-ring binders. They may still be available new from your local Detroit Diesel Allison distributor - ask at the parts counter. Mine cost me $100 ten years ago. They're now packed in a box somewhere in my storage unit after moving. . .
If the CDs are accurate reproductions, consider the space requirements, and the fact that you can print out the pages you need for the project you're working on, w/o making a greasy mess of your hard copies. Plus, when you're done, you can recycle the used paper.
FWIW & HTH. . .