Just so you don't think I'm too crazy in my thinking. This is from a NWN2 PW's site:
http://www3.telus.net/Riddoch-De-Di-...pies-Small.htm
It's their crafting recipe spreadsheet. The thing is that it includes recipes for stone walls and cottages. That's kind of what I imagine is missing in many of the player-driven quests: Recipes for success.