I doubt it, there are too many variations on the EUB theme, your choices are build your own or have one custom made for you.
A EUB neck is easier to build then a bass guitar neck because they are usually shorter, have no frets, no trussrod and you can get away with it being on the baseball bat side in terms or shape; just get a book and electric guitar/bass building and/or go to
www.mimf.com for help.
