If you are like me, the connectors in the back of the ROV is posing a bit of a restriction. I would much prefer have a camera there instead.
I have designed this 4inch enclosure middle bulkhead to remedy that:
I also made this o-ring flange so the lids can me secured:
This would basically take the place of the 4inch BR2 enclosure:
All 24 penetrators are tapped M10