Check with local libraries to see what they have as far as scanners. They might be able to help you out. And the prices of scanners has come way down. I love my Canon scanner I bought a few years ago - it's a standard size that will take care of a lot of stuff. There are special scanners now with the camera above and you set the item to be scanned on the bed and then save it in any number of formats. We have several at the university. They're not quite a sharp as the flatbed unless you tweak the settings, but it can be done. They're called KIC scanners.

Here's a view of one with a book mounted on a holder but usually items are set flat on the surface below the camera. Here's a little video from my library from when we first got them.

SRS