Here's a short Video of a Traditional Turkish Luthier building a Kemence in the traditional manner, (no CNC).
As far as sound goes, (I can't play a Bowed Instrument), my local Music Shop owner had a play with the Fishing Line Strings, and it's not too bad. The only issue it has, is that the curve on the Bridge needs to be of a smaller radius. Proper Strings will happen shortly. I don't think he would thank me for putting the Video up.