thank youAny time you remove the patina from a collectible you remove the collector value. But the reality is that KaBars (most military surplus for that matter) don’t have much collector value on their own. They made many millions of them. They’re still in production.
Unless you can tie this particular knife to an event or a famous soldier there’s no real monetary value. The bright side is you can recondition it to your liking and and it will be worth about the same amount, but if you do it likely will never be considered collectible. I wouldn’t lose an ounce of sleep over that, though.