Depends on why you want an o...*cough*..scope (its too risky to attempt to spell that word). From my research... (brand.. eg littman) stethoscopes cost just as much (if not more) in china compared to the west. I think its similar for oscopes. You can of course buy local brands if you are that way inclined for a lot less.
Books are awesome in China. I only have experience in Harbin. Shanghai should be way better. They are very cheap, only many are printed on poor quality paper. Who cares though, right? Good luck trying to find any non-american texts though (for some reason I felt you were UK).
Out of curiousity what are you doing for your elective? I wanted to do my elective in China as well but my chinese isn't good enough and I didn't want to stand in a corner for 3 months merely observing.