Space Victory in 1808 with a score in the 4700 range, Magnificint !
Here is the save:
http://civfanatics.net/uploads3/Hot1_1806_ad.zip
1780 AD (0): MM almost all cities to get Max gold without losing food. We now get SF in 2 turns with +13 gold at 70%. Put a few no shields accumulated cities on wealth, now making 68 gpt.
1782 aD (1): Hyangsan builds Thrusters, various cities start ICBMs. Without any risk from the other civs on the completion of the SS I trade Lizzy Ecology for Amphibious war and 150gpt, and 70 gold. Trade Mao Ecology for all his gold 1050 and 230gpt.
1784 AD (2): Learn Synthetic fibers change 3 citis off ICBMS to SS parts. Superconducter in 4, Nuclear power and Laser should be 4 after that

. Up to 10% on lux to push a few more WLTKDs, breaking even.
1786 aD (3): Finish off a couple more parts 2 are in process, 3 new ones remaim but have prebuilds.
1788 AD (4): More pollution cleanup, continue building parts
1790 AD (5): Superconductor next turn. MOre of the same.
INBT: Mao demands dyes, not having the desire to beat him back to the dark ages and knowing our SS will be ready in 8 turns I give it to him.
1792 AD (6): Learn Superconductor, switch 2 ICBM to SS parts and start Nuclear Power, due in 4 turns. 3 more parts will complete next turn.
1800 AD (10): Learn Nuclear Power and start Laser due in 4 turns with +417 gpt. With only 4 turns left in the game I decide to play it out, Hope Rowain can forgive me

.
1802 AD Begin prebuild in Taejon for the Lounge.
More pollution cleanup
1808 finish Laser, complete the Space Ship and launch [dance]
Well done by all!!