I am not sure but you would have to take it in and they will give you a good price it all depends on price of parts if they can get them. I hope it helps you. I took my 5.56 / 223 in to have made California legal they gave me a good deal and did it as i waited. I could leave it because it was considered a assault rifle. They were great and gave me different options to convert it.
You would have to take it in to the shop so you can find out exactly. There are different levels of restoration. And it depends on your gun. You may need only a little work, or you may need a lot. That's the only way to find out. But they can definitely do it!
You would have to bring it in for an evaluation and estimate. All comes down to condition and what parts cost would be if needed.
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