At least today's bondo is much better than in the past. Once Brett pulls out the dent and smooths it out with a little bondo...you're good to go!
But Hmmmmm, he could cut that out and install a T-Top!
Or, you could do like a friend of mine did in the 60's. He had a white Volkswagon, and hey, the weather was getting warmer, so why not cut the top off and make a convertible? That's exactly what he did. It was fine while the weather was good, but along came November and the California rain. No problem, he made a roof out of plywood. He only kept the car through one winter....so I guess the roof leaked a little.