If you manage to break through to the gold mine with about 20 butterflies (without dwarves), you'll get 3000 (a lot and a chest). Buy a hero, take a chest (2000) near the castle. Buy a third hero, send him to the gate. The next day, with an army from the first two heroes, break through to the tent and take 2000 (totaling 4000). The third hero captures the castle, exits, and surrenders. Buy a fourth hero (1500 remains), break through the defense below, and take the chest (even 1000 is enough). Buy a barbarian without orcs, go and take the chest (1500 exp) and kill the guard (another +500+x exp), totaling 2 days and 8 parameters.
All that's left is to ask AlexSpl to draw the necessary layout – generating it in the game is suicide.:mad: