The vulcanite stems I think you will find not like the Forever Stem but good quality nonetheless, currently the Forever Stem is not available due to issues with Log Cabin Pipe Works, who bought the Forever Stem works, is having rod supplier issues as are others who import rod material. If you look at my posting about a Cob Mod I'm working on you will see the name Bob Man and the real name of his company, he makes beautiful stems and if you speak with him he should be able to give you some options for your stem and if he can make it, best of luck.
banjo