It is tough to price sight unseen, and there are regional differences, but I saw a similar gun in a local (central Wisconsin) gun store in .223 with a scope and bipod sell for $450.00. I don't remember what kikd of scope it was.
I find that although there are plenty of .222 pistol barrels not to many rifle barrels were made, or those that have them want to keep them. I have been looking for a couple years with no success. If .222 is what you want that may make it worth a little more to you. If you get it and don't want that barrel let me know!