Better yet, find a rashed one real cheap (it'll be covered).
Brett
I really think your options are limited with a steel replacement. You might even consider talking to a local body shop or two (try finding one that employs bikers so they'll get your drift a little more) and talk with them about what you want and you could truly have a one-off fender. If you have the time, and you go that route, you could even get some poster board and cut out your own mock up, then let them cut it, weld it and fill it in off your own design.
Trust me, I know how hard it is to make a decision on which "cookie cutter" design to decide on, especially when you're trying to be different but still be uniquely yours. Talk to a shop and get some quotes so you know if its even a plausible route to take, but that's the best way to get the look you want out of a steel fender. That's what I was gonna do until my budget cut me short. Hell, I'd still go to marraige prison if my wife found out what I've spent so far.