Purchased a BOGEN 3047 tripod head.
I had discussed mounting options with Spheron UK and also KU’s photo technician, Bruce Wagman. Bruce has been great, as he is extremely knowledgeable and was able to show me one of the mounts, to verify its suitability.
Quite hard to find, as its an old design. Essentially though, I can use this to facilitate mounting system onto stock Mannfroto tripod solutions.
Additionally, this particular design allows the SceneCam cable connector to be inserted / accommodated through the mount (without modification).
I could have attempted a 3D printed mount, but the cost of the Spheron SceneCam system makes that too risky an option – if mount breaks, it could damage the extremely expensive equipment and / or museum exhibits also.