The whole TIBA thing complicates what should just be class G and CTAF procedures, after all it's just due to staff shortages, the repeaters, frequencies etc are all still operating. Just put out a NOTAM saying if ATS is available or not, and companies have to come up with suitable procedures for SARWATCH and traffic management if no ATS is available like it is at a lot of remote CTAFs out there. All you have to do is announce ATS not available, airspace is restricted to approved operators and CTAF procedures apply. All airports should then have a CTAF frequency based on tower in the ERSA and weather ATS is available on the ground in ERSA or via NOTAM where ATS is expected.