Thanks guys for sorting that out in a good way. All opinions are welcome, but lets be careful not to communicate them in such a way that we make others feel like they are not welcome in the discussion.
By the way, just for further barrel info, Lothar Walther has a US branch in Cumming, GA and they do sell barrel blanks. If we can find someone to machine the threads, this may be a source of premium barrels in custom lengths and configurations.
Here is the link. Search their site for what you need.
http://www.lothar-walther.de/html/386.phpYou will find that they make 375 rifle blanks.
Dan Wesson barrels are a rather straight forward (read simple) machining exercise as long as you have blank with the correct size bore and twist rate.
Dan Wesson barrel shrouds are interchangeable between calibers on the large frames and supermag frames. So if you can find or just order any supermag or large frame barrel shroud the length you want and get a machinest to turn the barrel blank to the proper size and thread, you will have your 375 barrel. Other than finding one on the auction sites, that is about your only alternative for the 375.
Roll Tide