I'm in the same boat and curious if other more experienced users have any resources to point to. My anedoctal data point is that after starting with doom emacs and having problems to set it up on another machine i fund out all i needed was a very small configuration file to accomplish my orgmode/agenda usage needs. So all it took was an issue and a clear vision of the goal to find a way through. Maybe it is a healthy approach to keep the complexity manageable to your usage