How much British reinforcement was available?

Was HMS Bulwark available, and how many British line ships were standing by to reinforce Codrington?

Bulwark was unavailable, but at least another second-rate and a couple of third-rates were ready to go.

HMS Bulwark was not available to join Codrington for this operation. The force inside Navarino Bay nevertheless did not exhaust Britain's available ships of the line. At least one more second-rate and a couple of third-rates were ready to move. That reserve illustrates the wider force-generation capacity behind the immediate order of battle.