One of these is not like the others...

Colton - 2nd plus something. Recoup what they spent with a little extra as Colton is worth more signed than his rights.
Lehkonen - 1st plus. Not too many like him as it turned out. The 'plus' wouldn't necessarily be major imo but that's my valuation.

Hawks aren't trading reichel and they just resigned mrazek so it'd take an overpay for them to turn around and trade him already. Probably a 2nd for mrazek

The two Minnesota players are completely unavailable, not happening.

AZ not dealing either guy

Neither of the MN guys are happening. End of discussion.

I think it will cost you

Mo Seider
Shayne Ghost Bear
Dylan Larkin
Patrick Kane
Your next 5 first rounders
The Grand Rapiids Griffins
Steve Yzerman's teeth

I don't believe there is anyone in CHI's roster that is off the table, aside from Bedard. But, unless CHI is recouping a mid 1st on Reichel, I doubt they even consider moving him, and considering the season he has had, I don't see anyone offering a 1st for him. As for Mrazek, they just resigned him to a two year deal because he has been so fantastic on such an awful team. I'd go so far to say that, on a contender with a solid team in front of him, he would be considered one of the best goalies in the league. Goalies notoriously don't go for very much, but CHI re-signed him for a reason, they need stabilizing forces like him on the roster for the rebuild to be successful. So, like @SociallyHawkward said, it would take an overpay for them to trade him.