That made me remember a question i wanted to ask:
Is this game even possible Ironman? Assuming someone knows the module inside out, is good at d&d tactics and the difficulty settings are not set high? Would it be, in theory at least, doable or not a chance?
I think so. After my current regular playthrough, I might attempt going after the ironman achievements.
According to the Steam achievement descriptions, Ironman achievements have no difficulty requirements. You can set everything to easy, giving you a massive boost in character abilities. Start with max ability scores, get 2 feats per levelup, max health, a stat increase on each level.
I wouldn't select anything that weakens enemies though because I'm not sure whether it reduces XP rewards, and getting yourself high level is more important than keeping your enemy low, especially with bonus feats and attributes on levelup.
With this low difficulty level selected, you then have to harvest as much XP as you can in order to prepare yourself for each challenge. With all the new content added in Finchbury, you can absolutely get yourself to a level where you're able to ironman at least all the way through chapter 2. I'm currently at chapter 3 in my normal playthrough and am going to take a look at the optimal strategy for getting through that area while minimizing the risk of death.