Agree, the casing is the other big problem. But as I've indicated, the Outcast bird I think has flown on that one. Unless they're inundated with genuine requests for a case, and it costs, they're unlikely to make any more.
I really think, unless you can work metal, you'll be off to an engineering shop for a prototype $$$$. Anyone want to draw up detailed plans? Will a forum member make them and go through the issues Sheldon went through (his own fault or not)?

