Oops, my apologies! I forgot the attachment to my previous post.
(my pasta was boiling) The quote was $298 usd for 20 boards minus shipping. The board is 4.8 x 9.05 inches.
A full schematic, a complete set of PCB gerber files and multiple pictures of the assembled prototype (as well as performormance measurements, in conjunction with the analyser) are all there to be seen/downloaded on the webpage I linked to in the threads opening post.
If I assume $50 for shipping the cost to me will be a little over $17USD per board. That's a bit more expensive than I was hoping, but there just isn't the interest so far to justify a larger batch order.
I'd sell them then (the 20) for x1.5 what they cost me (plus shipping), but only if enough buyers come to the table.
Doesn't look promising so far though.