give me five minutes i will link all the shit you need.
please show me a photo of the receptacle out he gave to you.
https://www.ebay.com/itm/174407469460?that is the exact pdu you need.
but i do not know what receptacle he gave to you so you may need to swap the plug or the receptacle.
give a minute to find the correct power cables
https://www.ebay.com/itm/184114573116?the pdu has four receptacles
you will use 3 of the four
you need three of those wires.
so three wires and one pdu.
I do not know those sellers.
the prices on the wires were pretty good.
the pdu price was okay.
ie if you really look hard you may find the same pdu cheaper.
but please show me the receptacle on the power outlet so i can see if the plugs match
some advise ask us before you call the power guy so we can show you proper receptacle.
the gear i linked is under 100 bucks.
not sure about plug receptacle