I think you also might think about the reaction you will get when you get around other builders, and shooters. Germanic locks are not unheard of on Southern guns, but are quite rare. So, in my opinion you should either make a Pennsylvania shimmel, or a Southern poor boy, just to save yourself the inevitable conflict you will encounter at events. Another point is it will be much harder to sell in the future, with a conveluted provenance.
Hungry Horse