You might have to get the power tool out and grind away . Just keep it on low and go slow. You just have to decide what part you want to repair the most.
If you drink out of a can, beer or soda try that material for a trail run . Than buy the flashing if you like the look. Some times it is hard to get the can to the can to flatten out. .
I checked that car out in Detroit at the Autorama a few years back. That is something else . The detail work to hide the go fast toys was second to none. It even had the plastic seat covers still on at the show. Just walking by the car you miss the roll bars on the inside.