Question My old 2500k motherboard is dead and so should I take the ...

Should I take the Cooler Master Hyper 212 CPU fan off the Hyper 212 and use it as a case fan in my new computer?

I have a Ryzen R5-1600 @ 3.9GHz all core boost with the stock CPU cooler and I'm not having any major cooling issues.
I would buy the conversion kit and mount the Hyper 212 onto the Ryzen however my Corsair 100r Case is to narrow to properly accommodate the Hyper 212.

The Cooler Master fan is still in good shape so I thought perhaps I could use it as an intake or exhaust. If I were to reuse it, where would be a good place for it?

Currently I am planning to disassemble part of my new computer to move fans around, swap the power supply, the Wifi Card, clean etc.
I have the 2500k ready on my bench to disassemble as we speak, so if I am going to do this now would be the time.

I have a standard Corsair case fan in the Corsair 100r, a Noctua NF-S12B redux-1200 PWM and an Arctix F12 PWM Case Fan also available.