Assembled PCB for sale, anyone?

I would like to try to assemble my first austerer system, so I try to order PCB according to GoRoNb Central unit (only that one have BOM and Pick and Place file included) on JLCPCB site but with no luck. I’m not convinced that I’m able to do PCB assembly by myself so, does someone by any chance have spare PCB that is willing to sell?

I have un-assembled PCBs for sale.
See the PCB details here. My cost is $10, that includes fixing the optocoupler resistors, plus shipping. PM me your location and I can see what shipping would cost.