Multi-circuit 3 phase Energy Metering Alternatives

Please help.

I am looking for a product to be used as a DAQ device to connect to CTs and voltage measuring devices as alternative to multiple meters. The application involves more than 50 meters, less than 100. All of the circuits are concentrated in 7 panels. I have seen manufacturers like AccuEnergy from Canada and Schneider who has a product like this. The meters will be networked using preferably Modbus TCP or RTU EIA485.

In any case, price is also a concern. Supposedly a multi-circuit board system would cost less than a whole lot of discrete meters. Isn't it?