I think your front wheel skirts may work just fine. Go back in time and check out CO ZX2's thread on his skirts.
http://www.gassavers.org/showthread.php?t=2173 Front Fender Skirts
Very similar to yours. I don't know if CO ZX2 is still around, he has not posted in quite a while. Here is his garage:
http://www.gassavers.org/garage/view/239
I do like his choice of vehicles though!
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