Sea-based AA forts and layered air defence

How useful could World War II-style sea-based AA forts with drones, guns, or interceptors be for defending the UK from drones?

They could help with sufficient weapons, numbers, and resupply, although shore defences or dedicated mobile air-defence ships are presented as easier to sustain.

Offshore air-defence forts could help if they carried enough weapons and received reliable ammunition supplies. Too few isolated positions could be overwhelmed, leaving gaps in the defensive belt. Shore-based systems would be easier to support, while dedicated mobile air-defence ships could reposition and return to port to rearm, refuel, and replenish. Japan's planned home-island defence ships provide the comparison for that mobile approach. The discussion also questions Britain's reliance on Royal Navy destroyers to supply defensive layers behind its fighters and stresses the limited ballistic-missile protection described in the exchange.