Will there be any beach/coast-based callouts, like people on restricted beach or illegal swimmming. Also, incidents on the pier and simple first aid calls might be ok. In this country, when people are injured on an inaccessible beach or part of the coast, the coastguard comes in a 4x4 and rescues them, taking them to the waiting ambulance...
Also, a coast-guard hover-craft would be a brilliant idea... For accessing people not far out, or in places where water is shallow or spread out...
Well done this is going to be a brilliant mod!