a relative of mine has a taurus pt99 AF 9mm left by her deceased husband (foreign diplomat). She's asking me to clean it and it still looks ok. I'm using the same kerosene cleaning method I learned right here in BOG. Apparently the owner maintained it well. It lacks a magazine and the gun has no signs of rust despite being stored for a few years. The run is surprisingly easy to field strip, as compared to my 1911. How much is a gun like this worth? is it ok as far as 9mms go?