What are the physical constraints for this project?

Is this an ATX case setup or rack mount?
Have you considered the noise from the vortex setup?
Power draw for the vortex setup?
Budget?

I'm all for people trying things but your goal of faster compilation times can be achieved but a processor farm and air cooling, for a lot less risk and money.

In the first instance I reckon you should test our this vortex business and let us know what happens.