Curly, First off welcome to the forum. A good forged barrel looks like most any well made machined barrel by the named makers, and to get a 3/4" by 46" in 36 cal. forged if anyone would even do it, would run at least a grand or more. I'm guessing what you are looking for is an aged browned appearance, and there are many discussions on the board about that. Just getting any kind of barrel with those spec's puts it in the custom range, and my first thought would be Ed Rayle. I couldn't find his number, but it's the only way to get him, as he doesn't do internet. Someone on the board may chime in with it.
Bill