very smart that you didn't use C13 PDU, ar too expensive and for exemple one APC 32A C13 PDi which is >600$ can only handle two SP35, schucko or UK cables are the best solution.
Thanks, but we can't take the credit, the local electricians came up with the PDU.
In the new building ready in the summer we are going to tapped busbars as even this stuff works out expensive at our scale.
J