2-3 months, 3500 pages, 8" thick this gives a whole new meaning to manual labor.
No copyright notes on the original manuals? Interesting.
One thing to think about is a "payment plan." Since these are available in volumes and you don't need ALL the volumes, you may want to just purchase them as required. Maybe you only need the engine manual now. You certainly won't need BOTH the automatic and manual transmission volumes. So next time you need the Body Electrical manual. Just pay as you go.
If were organizing this, I would start a thread on another board or communicate via PM & email. Better safe than sorry. Maybe I'm just paranoid.