OCC 20k, for sure, in an attempt to get the 20k Shield. Where we sit now, we won't be able to get that hill in our range, so I'll move 1SE and get that in range(after expansion). Opening builds will be Temple, Worker, Colossus. Shoot straight for GL, get it and then hang on until 2050. (And of course build a few other wonders in the process.) After getting literature, get Map Making, head out, and make some friends, keep trading. Also keep the Diplo option open. After making contacts, get to Republic ASAP, shore-cram the island with units(trade for as many slaves as possible), get half a dozen defensive units in the capital(in case anyone does come knocking before I can load up the shores). Keep population low unless building a wonder or prebuild, that'll keep the score down. Wouldn't surprise me if I had a Jason under 500 here. Obviously for lowest score I also want worst date, so 2040-2049 will be what I'm shooting for.
Between Colossus (2, 4 doubled), GL (6, 12 doubled), and the improvements (Temple, Library, Colosseum = 8, 16 doubled) I'll be bringing in 32 cpt after everything doubles, so I'll need a couple more wonders(and the middle age improvments - Cathedral, Univ = 7, 14 doubled). Get Bach's or Shakespeare's to finish up, that should give me enough CPT to get through to the late 2000's. If we have more than just a few tundra tiles off to the side, I might build a city there early on but disband it later once Babylon's culture can cover all the squares. Research on Max all the time until I get the GL, then ride the AI wave until Theology is mine - After that, go full-out on education and then wait.
Golden Age - Well, neither Colossus nor GL is religous, so I'll have to get one of those to get a GA(or wait for someone to attack and use a Bowman to knock out a redlined attacker). Completely passive play here.
(GOTM 43 was a complete disaster, I didn't even bother finishing it. Persia is one turn from launching space and I don't even have Tanks yet.)
I might just want to go for Diplo though. With everyone thinking a 20k is a piece of cake, it wouldn't surprise me if I wasn't the only one to finish OCC 20k in 2049. If I can't make the culture, or think someone's gonna beat me to the shield, I'll grab the UN and win that way.