I have an Apple II plus for sale on eBay and I figured I'd let you know here as well.
Along with the plus, the auction includes a bunch of extras. As for hardware, I have a Disk II drive, an Epson Printer Card, a Language card, a Disk II interface, A KoalaPad TouchTablet and Game Paddles, a Sup 'R' MOD TV Interface, and a 60DB Isolator.
I have a lot of software diskettes that are listed on the auction page, so you can check those out there.
As for documentation and manuals, there are a couple Apple Pascal reference manuals, some AppleSoft manuals, original reference manuals for the computer, and Basic Programming manuals.
I created a flash gallery for all of the pictures of the Apple II Here.
You can check out the eBay auction Here.