Pick1, you might want to contact Wheelsmith. They will custom build wheels to your specifications including offset, backspace, width, diameter, etc.
I had them make smoothies for me but they have other styles such as artillery "Budd" style wheels. They have reproduction hubcaps for their smoothies but will weld clips to them for you if you want to use your original caps. They also have beauty rings.
www.thewheelsmith.net