How about only building 8 or 10 CSCs (maybe even less if the manning isn't there), and building 4
Karel Doorman's in addition to the 2 Berlin's.
They are for all intents the JSS we thought we wanted. Tanking spots on both sides, two helo spots capable of up to Chinook, 6 helos in the hangar, 2000 lane meters and a both roll on / roll off plus a steel beach with boats (but no space eating well deck), good medical facilities, can embark roughly a company.
Not only an AOR, but can concentrate the helos for higher intensity helo ops, and perfect for HADR.