tut tut Martin, you said "but then again your best to get the new Marine Advance First Aid (MAFA) as it is pretty much the standard for any other transactions (license renewal, MEDs and such), all now are only valid for five years."
Have a look at section 107 of the MPR posted in my previous submission. There is no requirement for First Aid to renew Certificates. First Aid, which for officers, is MAFA, is only required for issuing a new Certificate, NOT for renewal. Rating's Certificates (ERR, BW etc) do not expire and MBFA is required for issuing these certificates. Both MBFA and MAFA are now valid for 5 years, despite what St John Ambulance training certificates say. (The training certificates specify 3 years, but they want to make money, right?)
MEDs are valid for 5 years, as you say, but service on a ship, in which emergency drills are carried out regularly as required by ISM, continues validity, ie they don't expire as long as you are at sea. However, if you have been ashore for 5 years, you will need to take a refresher MED at the appropriate level, STCW VI/1 basic safety for 4th Class, , MED D for the rest. Again, if you have been ashore for 5 years and do not have PPS training at the appropriate level, you will need to get that.
These are TC requirements, not whatever additional requirements are specified by shipowners in la la land. They can ask for skills in dancing the tango, if they wish, but that won't affect what you need to write or renew.
Discourage incest, ban country "music".