I don't know if there would be much advantage to a cottage Bureaucracy capital. If pyramids are built for representation, all techs will be got in ample time. +6 scientists beat even bureaucracy village (6 science versus 4.5 commerce), and tie towns (6 versus 6).
Cataphracts are strong enough for any overseas invasion.
So only techs needed really are guilds and astronomy. Could end up running quite low science at times, for upgrades, and because running culture instead of science gives any needed happiness for more scientists.
Assuming there is fresh water and food sources available, what could be done is maximize food almost everywhere, run caste-system at least by mid-game, so the only limit would be food, since we'd have unlimited scientists and unlimited happiness(with a free slider, and the theater UB.) Civil service would then mostly be useful for the capital production and being able to chain irrigate.
Could become a production giant, by building workshops on flat tiles everywhere, if there is a lack of hills. With guilds and civil service, workshops give +3 hammers -1 food, meaning grassland hills or plains hills.
What could be done is spamming scientists everywhere, then instantly switching from a science economy to a production economy by putting those scientists to work on the workshops.
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