I would shop around and buy a whole rifle (Sidekick) for around $200. Cabelas was selling the SS/Synthetic for $199 a couple weeks ago, but I think they are all sold out.
If you send your receiver in for a barrel to be fitted, the IDIOTS at Remington will test fire it and then leave the corrosive fouling in the barrel. It might take a few weeks after they test fire it before you get it back. Not to mention all the other nightmares like broken off front sights, horrible shipping boxes that let the components rub together during shipping. Remington was and is the worst thing that ever happened to H&R/NEF, they were that way 20 years ago, and it looks like nothing has changed.
One poster here went through a horrrible ordeal with a Huntsman barrel, brand new barrel with rust pits from test firing and leaving the corrosive fouling in the barrel for about 2 weeks before shipping it back to him. His front sight was also broken. Go search the rifle forum for more nightmares. No excuse for such piss poor customer service. No way will Remington ever touch another one of my firearms!