I need a 5U shockmount rack case and can't find one... All the shockmount units are 2U, 4U, 6U... while all the 5U I found are not shockmount, only standard.

I don't want to get a 6U and only use 5 units, it's bulky and heavy as hell...

So do you know any european company that makes custom cases and not charge you an arm and a leg for a single piece order?