Lords of the Realm 2: One Draft Victory?

In this game I drafted an army of 51 men at the beginning, then only used mercenaries and free archers (castle garrison) for the rest of the game.

Rule 1: After the initial army I cannot draft another unit.
Rule 2: Building castles is ok, and I can use the garrison units they provide me. But I kept that to a minimum.
Rule 3: The food glitch is banned.

I selected Italy as the map to perform this challenge.

The settings are the following:
Advanced Farming: On County Status: Weak
Armies Eat: No Exploration: Off (Sorry, that would take too long)
Starting Castle: Bailey Difficulty: Impossible
Weapons: Few Time Limit: No Limit
Nobles: Five (Max) Army Size: No Army
Crowns: 5000 Fight: All