eBay and Craigslist finds

^I tried to take a dent out of my car boot with liquid CO2 (Plumbers pipe freezing spray) not a success Unfortunately
Theory is that the metal contracts and dent pops out. If there's been plastic deformation of the metal it may pop out when cold, but will go back again as it reaches ambient temperature.
Worth a punt though for the price of a can of pipe freeze.
The traditional fix is brass (brazing rod) melted into the dent and filed/sanded back.

Dent aside, an ok buy? Reynolds 531, shimano 105...