I’m looking into wand scanners at my institution as well. I found the VuPoint and IRIScan, and I’m still trying to decide on which one or if there’s better ones out there. The issue I have is the scanner is rolled right on top of the document. I saw the VuPoint offers a stand that is held over the document (at least it looks like it), which is great for letter-size and smaller items. For larger pieces, like maps, is it possible to rig up some kind of frame so the scanner rolls on that instead of the document?