Just to let you know if you can't find one, I have toured my 94 Fly Deluxe extensively (very extensively!) in a rectangular SKB hardshell case designed for a strat shaped guitar.
You'll need to make a small cut in the fabric and dig out a very little bit of the polystyrene foam underneath to get the upper horn to fit, but it works just fine and if you've been careful enough, the fuzzy black fabric stuff will lay right down and cover the cut so as you don't even notice it.
It doesn't fit perfectly all the way around the guitar, but well enough to hold it firmly.
It's worth remembering that these guitars are carbon fibre re-enforced wood, pretty sturdy stuff, they won't break easily.
Well, two SKB cases actually, the first one eventually started falling apart from use/touring...
Cheers
B.S.