4. AFM subscription (for managing phase checks and other technical maintenance)
5. CAMP
If you mean AFM as in Airplane Flight Manual, then youŽll not find any mx info in there - CAMP is a good one to have for this. YouŽll see the relevant AMM pages in CAMP.
IMHO you are obliged to have AFM and Checklist revisions in order to have the current docs on board. Wether there will be many changes to an old bird such as the SII is another question. Still sometimes if you get a ramp check, the inspectors will know what is the current issue and crosscheck that.
BTW, I think youŽll have fun in the sun if "your" SII aircon and heating is as bad as the one was that I once flew...