[HMM V TOURNAMENT] "Ghostbusters"

My map works fine – nothing crashes (I downloaded it using the link in the first post), but I have a question. From the very beginning, I'm getting 5 gold per day, even though I haven't built any gold mines or a capital – is that how it's supposed to be? And another question: should I only send the save file from day 28, or are intermediate saves or replays not needed?