So, merging the ideas from here with some I got elsewhere and using Babylon instead of Shoshone, I just got my first sub-200 science victory ever--turn 193, 1330 AD, and on deity.
From here, I took:
(1) Build 3 scouts first, and bee-line them to meet as many trading partners as possible as early as possible;
(2) Ignore religion, except for maybe a pantheon if you happen to get a religion goody hut;
(3) Sell your extra resources to other civs, including all your horses and iron;
(4) Build no military, and pay other civs to fight each other;
(5) Build exactly 4 cities, as that is the number that benefits from Tradition;
(6) Build at least 3 of your cities next to mountains even if that's not the ideal spot, for Observatories;
(7) For Social Policies, go Tradition->Rationalism->Order->Patronage;
(8) Get loans from friends by selling GPT for flat gold;
(9) Standard sized Pangaea map to give lots of trade partners that can be met early
To that I added:
(10) Build at least 3 of your cities on coasts, because sea resources give lots of food and
(11) Since you're fine for cash from the above, use your sea trade routes to give your cities +10 food and +10 production. I had always assumed internal trade routes meant transferring food and production from one city to another--it doesn't, that food and production just magically appears out of thin air. +10 food in the BC era is insane.
(12) I hit the sea techs a bit earlier than advised to get lighthouses early; then harbors after eduction; then hospitals after after labs--all of which increased growth;
(13) I did build opera house in all cities so I could build hermitage, which didn't take much to do and more than doubled my culture over what is recommended here. I used the extra culture to nab that top-tier Order policy that increases food and production from internal trade routes by 50%--+15 food or +15 production per internal sea trade route!--and rather than getting consulates, I went down the left side of the tree as far as the policy that gives you 25% of CS ally research. I was raking in enough GPT--over 200--to just buy CS's outright.
(14) Restarting until my settlers were within 3 moves of a plot next to both a mountain and a coast.
I'm not as big a fan of spanning farms as the author is. Even with Civil Service, a plains farm with fresh water is 3 food 1 shield, and a grassland farm is 4 food. Compare to sheep--3 food 2 shields, 5 food 2 shield 3 gold fish, deer anywhere, wheat anywhere--and trying his advice I neglected shield improvements. Farms are OK for non-resource tiles, but virtually any resource will be better, and for non-resource tiles you need a mix of mines as well. The biggest reason to put your city next to a river or lake isn't farms, but the ability to build gardens.
I was only able to befriend 3 of the 7 civs I met. I tried the various methods I've read about to make the others friends, but none worked, so I only had 3 RA's going all game.
I only made 3 academies, saved the rest for direct bulbs, and still ended with 1911 BPT. All my cities were in the mid-30's for pop by 900 AD due to the insane internal trade food bonuses for cargo ships.
PS--For my 2nd proposal, I proposed World Idealogy--Order, and had enough city state allies to pass it. With my extra culture over the base recommended here, and Order being the world ideology, I didn't have unhappiness from other civ's ideologies, and most that took an ideology after the vote took Order--though that was too late to help with RA's.