I had limited time because I went on a holiday trip. I aimed for min without caring for area too much, I hope it is enough to get top 15.  The gap in the middle is awful as those arms are only used once but it is the only way I managed to get the animismus to work. If I had more time to tinker with this layout I think it is possible to shave 10 area or so. An educated guess on min CA would be around 100 A.

The puzzle design was awesome, and it is very challenging, specially area as a secondary.