The PCBs arrived quicker than expected: less than 2 weeks.

I ordered a whole bunch and I'm happy to send them to whoever wants to help with initial testing and validation.

I will solder two boards with RJ45 and JST-XH connectors this weekend, and run a few tests on my own.

If all is good then I'll create a special product listing on Tindie for those who want to try out some boards free of charge (you pay shipping).