After a lot time, post a WIP of a possible AU Revolt (1821) Brig. In reality, Ottoman Empire limited length of Hellenic built commercial ships to 30m. All however carried armament, due to the need of defense from pirates. The experience of battles with pirates gave significant experience. Also, Hellenic built brigs had very high masts with large sail area, making them very fast. Again, the reason was to be faster than pirate ships. But the high masts made the ship unstable and there are references that when sailing in strong wings these brigs were very close to stability limits. But in that time Hellene shipbuilders build ships without plans, only by trial and error.
In my case, Hellas AU is a Russian protectorate during 1792-1828, so I believe that no limitation rule exist in ship size, meaning that larger ships would be built. This particular brig would be one of largest built.