Sam, don't dismiss the SM57. It's the same element found in the SM58 but in a somewhat better-looking package. Both are stage worthy and built like the proverbial brick oothoos (Canadian for outhouse).
A serious caution: Know your source. They are among the most counterfeited mics in the world. An untrained eye will never detect the fakes.
This short clip is an eye opener:
https://www.youtube.com/watch?v=whfm6F-wK6gSee also under SM57 counterfeits.