Hi Earl,
The southern mountain rifles from TVM that I have seen have stocks that look like their Lancaster, Virginia, late Lancaster, fowler, etc, guns. It seems to me they just swap out hardware but use the same stock patterns for their different models. Were you able to order a different lock other than a Siler? They are well made but the SMR is not particularly true to many of the features we tend to identify with southern mountain rifles other than it does not have brass hardware. That said, I would choose whatever feature you like and not worry too much about HC. Most SMRs, but not all, that I have seen have iron muzzle caps or muzzle cap-like decoration. Certainly, a true muzzle cap protects the stock from splitting so it serves more than just a decorative function. If you visit our virtual library of photos and click on the southern collection, you can see many originals that may help guide you.
dave