Porphyrius
Warlord
The key problem on this type of map is production. We have more sources of hammers than most of the AI's I predict so that is good. But we still need to build only what we need.
So ... build/chop Stonehenge to get the early border pops and the prophet. Skip the Mids; they cost too much and we want to run a CE with Ragnar not an SE. Keep the military to a minimum with just a guard for the northern border. Build the GLH for the extra commerce; skip the Oracle - it is too expensive with no marble and not industrious. Get monarchy for wine and happy faces where needed.
Production is the key issue with the map but not in the manner you describe it.Early on unless an AI is close enough we are left alone to REX. So theres no haste to fully close up the land or get border pops as in other games. Getting the outer ring fishes in amny cases is faster/easier via SH but that hardly makes it worth it.
Later on, when we get astronomy and focus on units we need lots of


I also dont think HR is a better opt to representation mostly because we really have no use for land base military for a good while. We need to divert


If we were to head straight for optics especially boosted by the oracle i think we can net things like alphabet,currency,CoL via trades. But oracle with no marble remains a risk.
As KMC says delaying rifles gets CR grens with the amphibious promotion through berserks. Now consider we net SoL as well from military science and i think its the way to go. Yes theres always drafting but using aforementioned promoted grens in this map is way better than upping quantities a bit.
PS: Scouting the seas is a hard priority and a wboat is cheaper and will certainly have a use. A galley is better off in time to place settler #3 on the small island.