I've got a 1951 Model 39A that I'd like to put a scope on. You may have seen the rifle before in another thread. I'd like to put a small scope on it but will need to tap the receiver. My two questions are... 1. What scope would I use? Just looking for something cheap (but reliable, not the junk in plastic at Walmart) but quality. 2. Would getting the receiver tapped hurt resale value? Are there alternatives? Thanks.