Out of the 5 basic buildings for a grade 2 county, the theater was automatically built, and the 3 altars only needed blueprints. The most annoying one had to be the chess courtyard as it required chess players, which needed an element of luck.
For the basic buildings for a grade 2 county, each blueprint was sold for 500 gold on the market.
These building blueprints, including the grade 1 county blueprints, were very difficult to obtain from raider camps. This was because such cultural buildings had nothing to do with raiders. Hence, the raider operation did not give Ouyang Shuo any blueprints that he could make use of.
Hence, to buy all the blueprints for the grade 2 town, he needed 2000 gold.
The population's upper limit of a grade 2 county had increased so much that based on the current refugee spawn rate, it needed 100 days before it would be reached. Hence, Ouyang Shuo needed to increase his population through other means.