Some of those cheaper Beatle bass cases that everyone makes might work tho. Most are 12 to 12.25 inches at the lower bout and the Club measures 12.5.
Hopefully the people doing the measuring are measuring from the padding easily as apposed to jambing the measuring device in there pushing in on the padding.
Musician's Friend has a really nice one made for a "Beatle" bass and it looks to have really thick padding and may possibly work.
http://accessories.musiciansfriend.com/ ... sku=541853

