I'd fix it - we don't run the junker classes that the circle track guys do. Besides, you'll need to get familiar with bodywork. Those repairs could be done in a Saturday afternoon. Take you paint code to a good paintshop and order some rattle cans with your color, piece of cake.

All you need to do is
1. Drill holes into the dents
2. Use a slide hammer to pull them out ($20 at any auto parts store)
3. Slather bondo
4. Use a wheel sander to smooth it out - usually need 3-4 bondo slatherings and sandings
5. Paint
6. It looks good from the 50/50 perspective. 50 feet away or 50 mph it'll look grrrrreat.