The completed programmer is not on offer at the moment. If there is a need for completed and tested programmers, please send us a message and if there is enough interest we may decide to build these boards and offer it on the site.
In the mean time here is the sourceforge link to the site where the minimal JS16 is described. http://usbdm.sourceforge.net/USBDM_V4.10/USBDM_JS16/html/index.html and specifically this file describes this version of the programmer. http://usbdm.sourceforge.net/USBDM_V4.10/USBDM_JS16/html/USBDM_JS16CWJ.pdf
I hope you have hours of build fun!!!