Cali King is a custom size generally (vs the more common Eastern King). Amish......ummmm.....no. They generally have to eye for proportion because they never studied furniture-making and period pieces.

I have (4) of these beds in my own home - every bedroom has a Stephen Plaud bed - and I sleep on a maple cannonball bed (eastern king) every night. They are made in Rhode Island, and they are not inexpensive. However, they are made right.

http://www.stephenplaud.com/