I spend a lot of time on speaker-building related sites and I KNOW I've seen that coaxial driver somewhere.Ā (It's not B&C, Faital, Eminence or P.Audio, but ... I'll find it).
Of course the work in speaker building is optimizing the crossover and building a furniture grade cabinet, and from the looks of things (and your reports) it seems as though this is done well.
The drivers are probably quite expensive, even purchased in bulk, so the price being charged for the speakers seems exceptionally fair to me.
Would love to hear them.