Do you have any pictures of how bad it is?
One suggestion is taking some 1000 and/or 2000 grit sandpaper and try sanding the clear coat down follow by a good polish.
Another suggestion is getting a rattle can of clear coat and try spraying over a small portion of the car (such as one fender) and seeing how it turns out. Afterwords, you can do the sand/polish on that section for an OEM shine.
Hatch Nation #13 : Rally Revolution #13 : ROTM Jan '13
It's Bryan, not Brian
RSVT-170 Build in Progress
Rusty is dead