Personally, I'd just get the Bentley book, it covers nearly all if not all of the owners manual and has a lot more vital information for repair work. If you are resolved to get a factory manual I'd try LA Dismantlers, or maybe even Jake Raby.
Found the Bentley version on Amazon, in paperback for 59.00, applied for instant amazon card and got 30.00 off instantly. That sounded like a good deal to me...
Now, if I only had a garage and a lift....