Looks like Eagle Music stock the Goldtone http://www.eaglemusicshop.com/prod/o...shell-Case.htm
Paul Hathway's instruments are nice and Hobgoblin in London might have one in stock.
You could try APC, they also make mandocellos, Moloney music stock them http://www.moloneymusic.com/Products...BouzoukiFamily and I am sure others do too.
Bookmarks