My other guitarist just bought a Dual Rectifier and it came with a brand new Live-in Saint's Row Case that he no longer needs (he bought a live in head case with an 8 space rack). The case has never been gigged with. Not a scratch on it. I can sell it you for an extra $150. If not, then I would suggest checking on ebay.
If you want one with a rack space above the head, or a dual head case, like I have, then you will probably have to order one from a company. A couple of companies that make great custom head cases to spec are Saint's Row Case Company (Arizona), Rock Hard Case Company (Oregon) and Crown Case Company (in Charlotte, NC and who I bought mine from). I have friends/bandmates with all three of these company's cases, and all are made very well. Hope this helps. I'll let you know when I am on my way back home. Thanks for the reply!
-AJH