I ended up getting all of the relevant marble wonders with TGL, MoM, Parthenon, and later the Taj. I used my great prophet to start a golden age as soon as i finished Nationalism, 2 great scientists were used to bulb parts of Edu and Lib, and 2 GMs ran trade missions.
I took MT with Lib in 740 AD, and attacked Justinian somewhere around 900 AD after waiting for my merchants to finish their missions.
I made a funny little gaffe that temporarily lost me a city.
Something pretty awesome happened while i was fighting Justinian.
I had to trigger a huge world war to continue as Zara capped to Charlie and then Washington peace vassaled in the span of a couple turns. That stack was maybe 2/3 of my Cuirs, the rest were healing or in transit.
Charlie had a ton of units for Immortal, but i eventually bludgeoned my way through it with cuirs and then cavalry. I was picking off the occasional Ethiopian city while fighting Charlie too, and i wiped out his last city around the same time that Charlie finally capitulated. Washington got rolled over in a few turns once i finally got over there to him.