Wow, 10k? As everyone else has stressed, severely bent frame rails = not so good in my book. I wouldn't settle for that, and the repairs ARE going to be well over 10k... more will surface once they start the repairs.
Crawl underneath and look at the engine and transmission mounts.
One more tidbit. Are you aware you can download what your truck was doing during the last five seconds prior to impact. Speed, braking and air bag deployment can be retrieved. Not an issue if you are not at fault but the telemetry could be used against you if an insurance investigator gets the "black box". Here is info on what CDR's do. http://www.cdr-system.com/
2007 Colorado, Pace Blue, regular cab, 3.7, auto, ZQ8 , 2LT , 3.73, G80, tow package
Pace Edwards Jack Rabbit bed cover
Catch-All Xtreme Floor Guards
ZQ8 tailgate decal
Factory foglights added