Hi I was hoping for a little advice. I am trying to get an idea about board cost to determine if I want to do a two layer board or a three layer with the middle layer a ground plane. I am looking for ball park pricing to help determine if I want to take all the extra time and effort to cleanup a two layer board for 12bit a/d. The board is approx 2'' x 3.5". The first price guestimate I received for 1000 board seemed astronomical. It was $5 per board 2 layer (1000 qty) and $10 for 3 or 4 layer same qty. Does that seem right? Can anyone recommend a good board Mfr?