[t walgamuth]

You can do a lot with pedal manipulation. In my Formula Ford autocross car the footwell is so tight that I have trimmed off a one quarter by 1" side on the clutch pedal so I can shift without hitting two pedals at a time. I wear only size nine shoes. I have an old set of leather sneakers which I ground off at lease 1/4" on each side of the ball of my foot area which added to the pedal trim achieves the same thing.

I also bent and added to the foot pedals on my VSE Cobra so I could reach them one at a time.

Modifying shoes and pedals is a lot simpler and safer than moving body panels around.
It might not be enough for you but it is worth a good hard look.