Wow, that's too bad. The car was, and still is beautiful. You can surely pull the dent out. I saw a Mini and a F350 Super Duty tugging on a Miata at VIR last year. the tag team straightened out the frame pretty well. you should definately give it a try. If the frame is still somewhat bent, you can always just try to balance the car with corner weights.

Good Luck,
Steven