I am thinking about saving a Mauser HSc form a my LGS for $280. It has rust on both sidesof the slide. It does not have the original grips instead it has yellow plastic grips. It is a late war production #920000 all matching numbers, Eagle / Waa 135 and Eagle N proofed, one magazine. My concern is $280 too much. I talked them down from $325 and put it on layaway, I have the option to not get it. I am familiar with the design having a HK Mod4. So what is your thought, run from a rusty gun missing the original grips. but is in working condition. The rust is rather substantial not just surface rust. On the left side it covers half of the letter stamping.