A Commonwealth Royal Fleet Auxiliary pool

Would it be cheaper for the Dominions to establish separate fleet auxiliaries or contribute ships to a shared Royal Fleet Auxiliary?

A shared RFA could pool funding and standardize oilers, stores ships, and supply ships while allocating enough support to each participating navy.

The proposal uses a communal funding pool in which the Dominions contribute to and draw support from one Royal Fleet Auxiliary. Common classes of oilers, stores ships, and supply vessels would simplify procurement and create opportunities for standardization. The idea illustrates how institutional design can multiply fleet endurance without every navy building a separate logistics bureaucracy.