Geezer, I wouldn't worry too much about Cyclart. They've always done a good job for me. They're the most expensive option I'm aware of, and don't always (ever?) get it done on time, but the end result will be top quality.

Now, I also have reservations about locking a frame like that to a light pole and such, as it is a very nice frame - 30 years ago, frames like were used to win the Tour de France, etc - but what the hey, it's your frame. The guy who gets it after you will just have add "dent removal" to the list of refinishing tasks.