Starting moves:
Settle at the spot. I think it is a very good starting point.
Worker moves:
First to bg. Mines it, then roads. Then to the moo, irrigates it and roads.
Production:
Granary, then worker.
After that either another worker or warrior. I do not think that with such a start we should worry about exploring our coast line. I will concentrate on London during the first 20 turns. We will have enough time to make sure that we control the oceans.
Research
Research writing on maximum towards Republic slingshot. With such a start, Alphabet in the pocket and archipelago map (no intensive trading among AI), Republic slingshot should be very easy goal.
I do not think that Map Making slingshot is a good idea, I think we have more chances to get The Lighthouse to ourselves otherwise for the reason below.
Foresting
There is one thought: when we will get out of the despotism, furs in forest will be giving us 3 shields per tile. This is extraordinary production.
With mined bg and plains and irrigated moo at the pop 8 we should be able to make 20 spt which gives us The Lighthouse within 15 turns.