I’ve got 9 single layer PCBs (30x30mm) unpopulated, with parts (SMD), from a prototype run for sale if anyone is interested. The build is tested and specs a little under the upcoming series which will follow an interest poll on another thread. A Kit will be 25€ + shipping. Sorry, before anyone asks, I don’t have the time to populate the boards.
I also have some 1Ohm/3W/1% Resistors for running 445nm diodes in parallel if needed.