We finally received the rest of the kit, including the most important parts: motors! In the videos you can see one of them operated in wheel mode and the other one in position mode (the reason for the jerky movements is that I had to use my laptop while also filming, otherwise they are working great). The power is delivered by one of the battery packs while the data is coming from the USB2AX plugged into the laptop.
(author: Gerry)