For strictly inventory, you don't need anything representing quality - If you have a digital camera that focuses close ....
-put a peice of white paper on the floor
-suspend a piece of glass between two chairs above it
-shine a lamp on the paper
-set neg on glass
-take pictures of each neg - you can even hand hold since it is for inventory
-reverse image in photoshpo
Cheap, quick, fast,etc.

Roger