There is a wonderful BP builder in High Springs, Fl ,by the name of Jon Williams. You can google Jon Williams and find him to to get information about his instruments. Jon is also a builder of Mountain Dulcimers. Being new here I hope mentioning md's will be ok.
Jon Williams is a member of Psaltery Strings and his information as a builder is on the front page. He didn't have a web site at the time I added him so I'll have to bring that up to date, thanks!