Ok, I'm back from my trip
I didn't get as far as I wanted to on the assembly, yet. For the first batch (48 boards) I have microcontrollers soldered down and programmed. The microcontroller is the most difficult (& time consuming) of the 3 ICs, so I did that first.
I am planning to complete assembly of as many as I can next weekend, and then open orders late Sunday night (June 10).
If I end up selling out of the first batch, don't worry. I will order more materials and build more until everyone that wants one, gets one.