First of all, congrats dirkvl!

About delivering the devices, yeah it might be worth at least to check if there is some facility that can do the soldering work. After all it's a relatively simple PCB so it doesn't require highly skilled (and expensive) operator.

On the other side, I hope Jolla supports Dirk with a few extra phones, as snapping in-and-out 600+ TOH is quite a 'stress test'