Congrats on bringing this to life. I'm sure a lot of us suffer from having many "cool" ideas that never get realised, so kudos to you. I'd love to support you with a purchase of a Panasonic unit when the time comes, just point me in the right direction when you are all setup.
Question: Does you focus pull function work similar to the GH5's. For me this, and the remote thumbstick control of focus is worth the price of entry as a gimbal shooter.
Great stuff mate.