checker my be able to do what you want. http://www.checkerpro.com/customclassic.html
or you can call steve at scs fabrication 271-3047 and he may be able to make you an aluminum one. if you call him tell him that walter told you to call him about it.
I have looked into Checker, but I would prefer a place in California. That why I would be able to take my truck there so it is a for sure fit. Is SCS fabrication located in Fresno?