Im currently in the process of finalizing the design for the black panel but am taking pre-orders for both white and black. I will have 10 panels in hand by Oct 21st so likely your order will ship then otherwise it wll be the following week.
The westlicht performer has quickly become the central brain around which most of my patches form. It's extremely versatile, well thought out and intuitive. I recommend you build one!
In the course of using it I found a few things I thought would aid in the ease of use, including color coding the outputs, putting background pads on the sequencer steps and other various tweaks.