The Khozmo didn't seem to draw much as far as I can remember. I did run it on a bench supply to see what it wanted in terms of minimum voltage and to be sure the motor wasn't pulling a ton of current. Arek will answer your questions if you send him an e-mail (be sure to mention that I sent you, as I bug him a lot!).
At its essence, this is functionally identical to a BeePre 2 with all the upgrades, and swapping it out for Doc B's BeePre 2, the differences were nice and subtle, as they should be!