Those interested that didn't get the email; Rotorpixel been in touch with a production update. They are waiting on their gimbal control boards to arrive before they can finish the product but hopefully that'll be sorted sooner rather than later. Cost wise $250 to $400 which is a lot cheaper than the alternative at the moment. Power options will be external battery or tap into the PV power by doing a simple solder job. Personally can not wait much longer so hope these are ready for purchase soon!