When you say "chainset shattered," what exactly is broken? Can you post a pic of the chainset? I have seen the model you reference above go for ~$82 on amazon.com:

https://www.amazon.com/SR-Suntour-CW.../dp/B00B5TW544

But before you go out and buy a new chainset/crankset, you should try to see what is really broken/bent and what is not. In other words, you might just need a new chainring, chain, or something else less expensive.

Edit: If you're going to pull the chainset, then it also wouldn't hurt to check the bottom bracket as well. If you don't have the tools for it, then let a bike shop do that for you.