Same here. I'm waiting for clean and nie solution to utilize all spare hardware, I have in my company. It would be great to have simple PaaS running on one machine, it would be awesome to utilize them all. If someone could give me step-by-step instructions / solution how to do this, I would really pay for that (or support open source, if that's the case).

You don't need a cloud. You can deploy it on whatever hardware you have as long as you have an SSH connection:

http://www.octohost.io/knife-solo.html