Gibson J45 Case Problem

I recently bought a 1974 Gibson J45 and I'm having problems finding a decent case for it, I need something bomb proof realistically. The biggest problem is that the upper bout is slightly wider than the newer J45s and so I'm having problems to try and find anything that fits. So could anyone give me a decent recommendation on a case that is seriously heavy duty but not on the Calton side of expensive or a large rectangular flight case thats too bulky to carry around.

Thanks