Default [Q] Space Requirements for Kernel Build and test

I originally had a 150GB VHDD ready but now I just hit a storage crisis, is 100GB enough?
Also the 150GB VHDD is slightly buggish... Might need to reinstall it.

For building kernels only. is 100GB enough?

Device Name: Nexus Prime
ROM: Always changing
Kernel: DirtyV-SR

Other Device: Nexus S/ Nexus 5/ Nexus 10
ROM: CM11 / Velocity/ Rastakat or Liquidsmooth
Kernel: Trinity / Trinity / Trinity

Devices I meddled with(rough chronological order):
Google Nexus Prime(my new daily), Google Nexus 5(my girlfriend), Google Nexus 4(Sold), Samsung Nexus S(for everything else), Samsung Galaxy Note(sols), LG Optimus 4X(sold), HTC Sensation XE Pyramid(sold), Samsung Galaxy Wonder i8150(sold)