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Thank you for the description! I hope VDV_forever hasn't gone on vacation yet and will upload the save files.
Original walkthrough. I have a couple of comments:
1. On the first day, you can manage to hire 6 heroes (there were 7, but I fired one - it was blocking the path :)), recruit archers, defeat the hydras, and move two barbarians as far to the right as possible.
2. On the second day, centaurs and nomads join, and there's no need to build anything in the castle (it's a waste of resources :)). Instead of the Boots of the Traveler, which give 3 movement points, it's better to take the Nomadic Boots (+6 movement points).
But after that, I have no complaints about the walkthrough ;) Everything is clear. Respect for the idea of BREAKING through the enemy's line of defense instead of going around it - this saves movement points. Ideally, you should also take a compass, but I didn't bother with it.
If you want to see the save files of your opponent, they are here (only the end of the day for comparison).