World tournament for Heroes 1!

Theoretically, the map can be completed in 7 days. But I couldn't gather enough resources to build a castle on the second day, so I ended up completing it in 8. First, I sailed to the Sorceress, then to the Warlock, and only then to the Knight. It takes exactly one day of sailing to reach each opponent. It seems there was an initial secondary criterion, so I wasted extra time boosting my stats. I boosted them to 16. I sent the save file. And then I realized that I could improve it... By the way, has anyone taken the bag that gives +1000 gold per day?