Aputure's Ted says their new 300D II is approximately equivalent in output to 575W HMI at 2:20 mark of this video:
HIVE LEDs have same diameter chassis as Profoto.
Notice that Pilotfly and Tilta gimbals have motor at side next to ports, where the distance to tripod screw of BMPCC4k is shorter. This way no need for offset plate or upside down camera. Even Zhiyun has listened as per recent video of Weebill Lab.
https://***URL not allowed***/8sinn-releases-blackmagic-pocket-cinema-camera-4k-cage/
$179 for half cage is reasonable....just noticed it'll be available from BH