So I let my brother borrow the Tahoe for a few weeks, he smashed it into one of his buddy's rigs and this happened. 
The bumper mashed in the the metal and some of the paint is flaking off. How much is this to fix at a shop, and how would I go about fixing it myself?

The bumper mashed in the the metal and some of the paint is flaking off. How much is this to fix at a shop, and how would I go about fixing it myself?
the brother.
