Well, you have a ton of options. Jim Briggs at NSS will probably have a barrel in stock for you, and carries all of the tools to do the swap yourself (you have to call him, and his line is often busy, but a great guy to work with!). McGowan has barrels in stock as well. Apache Gun Works has a blued bull up on eBay right now, or you can order one from him with whatever bells and whistles you want to add on (another great guy). After that, if you have time and money, Shilen, Krieger, Pac-Nor, E.R Shaw, Sin-Arms, Bugholes (sometime later this year) all have Savage barrels.