I'm looking to purchase a 1920's era 99. The serial # is 289562 and the lever code is M. Apparently, this is a takedown version. The firearm is in fairly good shape. The metal has no rust. The wood a little wear, and one tiny crack. What's the ballpark on a gun like this? The guy wants $375 for it, what do you think? By the way, the cal. is .300 Sav., if that matters.