Why do you ask, adding something to this?
It's a 3-phase service feeding 50-amp receptacles (shore power for boats). The wiring on the docks was replaced a couple of years ago and now they are getting bigger boats in the marina they are finally understanding what I told them back then, "you need single-phase service".
So the job will consist of changing the service delivery. Since the (9) 200-amp disconnects are 1-phase, then it appears to be easy to bring in new service conductors, CT cabinet and service disconnect to re-feed the 200-amp disconnects.
The issues:
There is a 200-amp 1-phase meterbase and service for the buiding just around the left corner.
The owner needs the docks and building power on separate meters.
AHJ will not allow 2 points of delivery of the same voltage to the building.
Not enough room to bring together 1000-amp service disconnect, meter and CT cabinet in this same location.
AHJ also said that engineering drawings would be required to replace this service.
It turns out I can buy a 1000-amp MB panel with (9) 200-amp breakers for a couple of dollars less than I can a 1000-amp enclosed service disconnect. Seems to make sense to bring the conduits into the panel through the bottom. Install a 200-amp meterbase and service disconnect to re-feed the building panel. Let the service conductors come into a CT cabinet, run the conductors for the 1000-amp panel through CTs and come out of the CT cabinet with conductors that are not metered by the CTs to feed the 200-amp meterbase to re-feed the building.
Engineer and PoCo don't seem to agree. It would clean up that mess a bit, and get rid of a rusting gutter and rusting enclosures for the existing 200-amp breakers. I sense that others think I'm trying to make more work than necessary.