Power Distribution system incoming isolator

We are looking for a quotation and possible purchase of 12 pieces of power distribution units with the following description.and attached drawing:
1) 250 a tpn + e busbars,
2) 250 a tp + n incoming isolator.
3) 250 a tpn mccb incomer with communication port.
4) 4 no. three phase power supply panel with communication port complete with 5 no. 63a sp mcb and 3 no. 32a tpn mcbs outgoing circuits.
5) 5 no. 63a sp contactors electromechanical interlocked changerover on outgoing circuits.