Well, that's not really what I meant. My mothership concept would indeed have a hangar deck (for helicopters, and maybe strike fighters), but it wouldn't have a dock at all, or if it did it would only be used to resupply one of the many standard boats at a time. They would no be transported in the mothership but go by their own power.

And you'd need to build new small boats. The ones used today are built for some specific purpose while these would be preconfigured to carry a modular mission package.

Peak oil is not an energy crisis. It is a liquid fuel crisis.