The naval shape of Operation Unthinkable

What would the naval aspect of Operation Unthinkable have looked like?

It would emphasize blockade, containment, Pacific pressure, and an enormous global convoy system supporting simultaneous land campaigns.

Existing convoy traffic to the Soviet Union would turn around, while British naval forces attempted to contain Soviet movement through northern waters and the Denmark Strait approaches. American forces would apply pressure from the Pacific as major land battles unfolded in Europe and China. The dominant naval workload would be worldwide convoy and supply movement rather than a single fleet engagement. A later answer distinguishes feasibility from desirability: the plan was considered possible enough for staff study, but politically unwanted.