I have to pick him up because I lost Aquino as a closer and missed out on Lyon, no other options
You're far better off keeping Aquino. Lyon is far from a lock to keep the job, and Aquino figures to vulture a few wins in the setup role even if he doesn't get back in the closer mix.
The main thing is you DO NOT want any part of Kim. He's finished. An 84 MPH heater at Coors is a disaster. Even if he somehow becomes a part of the closer rotation there (highly unlikely) he's going to get lit up.
To be honest, if Aquino was that much of a key to your bullpen, the likelihood is that you were neever in good shape at this spot. Either make a trade for a quality closer, or punt the saves for now.