I have a set of rear flares here now and I don't see any way to use them on the front. Nearly 3" of cutting is required front and rear, which is past the inner fender. Assuming you're willing to pull the inner fender and trim to the firewall, the height of the flare is still wrong. The front fender opening is about 2" taller than the rear.
Here's the measurements I got:
-Front wheel opening height: 16 front, 18.5 rear
-Front wheel opening length ~35 3/4 at the bottom (hard to tell because it's trimmed a little)
-Rear wheel opening height: 16.5 front, 14 1/4 rear
-Rear wheel opening length: ~37.5
There is definately interference with the fuel fill door. I can't imagine cutting it off. Assuming that it would be painted anyway, I guess the flare could be notched a little and filled with fiberglass.