Any value on a rebarrelled Arisaka?

[drache]

Someone wants to trade me a Japanese Arisaka for some ammo I have listed at $350, the only thing is, it's rebarrelled in .257 Roberts. It's doesn't appear to be sportorized anyways. Still has Japanese markings but the barrel is stamped .257

 

[Claven2]

it's been sporterized. Someone rechambered it (presumably) and the bolt handle is not supposed to be bent like that.