Yep, Chinese contract. Almost all of these are beat to hell. This one is actually nicer than most I've seen. Wonder how that Czech triggerguard ended up on that one?
At $400. I would strongly consider it, at $350. I would buy it. Others will disagree based on condition and mismatched parts, and those are good points. I like to collect different versions of the K98k and will buy a rifle that has issues to get an example. As others have said most of these look like they have been dragged behind a truck, I have one, and that is how mine looks, this one is better. the back of the bolt root should have the Chinese sun proof on it. I would not buy it looking to resell, I doubt it will appreciate like a nice matching K98k. But at $350 you couldn't get hurt. I saw on e-bay today a mismatched K98 bolt was over $180 and the auction had not ended.