Where should I start #2

Take a look at this robot.

Take a look at this robot. It uses a plastic plate as a chassis where all parts are mounted. The ball caster is the third wheel of the robot, while the SHR just balances on his 2 drive wheels.

Order has been placed at

Order has been placed at Solarbotics :).

Do I need the regular or keyed uBotino V3 from your shop?