Very conservative dilithium estimate would be 13.8 million dilithium assuming transwarp costs the same as other upgrades (it cost much more at Tier 2) and that Tier 5 is identical cost to Tier 4 (signs point to ~3 times the cost which would literally double the amount of dilithium needed to around 30 million dilithium). That's a current market value of just under $2000 and this does not include fleet marks, duty officers, commodities, or items that have an energy credit component. I sincerely hope that Cryptic won't backtrack from saying that the Romulan Embassy would be substantially cheaper than the starbase.
Thing is we only hit that number 1 month ago, before that we were under 100 active up to tier 2.5, and still managed to get every project started on time. Since then weve taken in a broken apart fleet, and other groups becaus epeople love us