Sorry for the lack of updates, but rest assured progress continues.
Area built and is exactly the same layout of the original. I still need to write 1 script for this area (The Magic Harp), but am having difficulty coding it. I decided that wasting any more days working on this is not productive, so I will address it later (I think I know how to tackle this).
The original Furnace area was around a 48 x 28 tile set, which is something you do NOT want to do in the NWN2 engine. I will sadly have to break this area into 2 areas. I need to play through in the original game and explore and figure out the best way to break it up.
Can't wait to code/script the Test of Purity!