This guy has hand built a vehicle rooftop camera gimbal for storm chasing to capture bad weather footage. He has pieced together a Feiyu G5 V2 gimbal, Yi 4K action camera, a bucket with acrylic dome, and some other gear to make a great camera set-up.
Video courtesy of ‘TheF5hunter’ channel. He doesn’t go into any details on how it’s made but you can get a good idea by just looking at his design if you want to build your own.
Some of the gear used for rig:
Feiyu G5 V2 gimbal Here
Yi 4k action camera Here
7 Inch Acrylic Indoor / Outdoor Dome Here