1) Is it all going to be single phase and less than 600 V?

2) Will the generators be paralleled to each other or shore power?

3) Will the switching between power supplies occur IN the console or this is more of a control and display unit?

4) Different DC voltages for inverter batteries and engine starting?

5) LOCKABLE disconnects to prevent energizing exposed shore power connections?

6) Suitable enclosures / gasketing to withstand marine environment?

7) CT and isolation transformers to isolate different systems from inadvertant cross connections?

8) Communication connections to shore power, generator, and battery bank within reach to aid in trouble shooting and system reconfigurations.

Sounds like a fun project. Good luck with it all.