Those are by far the best looking rack I have seen for these bikes. I would be very interested in one if you are making another batch.
Got mine mounted today, along with my BR Moto side racks. Still got a bit of fiddling to do with the bags, but I ran out of patience in the cold weather, so I headed indoors for a hot coffee instead.
I am also very interested in getting one of these top racks. Just installing the BRMoto side racks now, and great to see that they'll tango together! So the question is - RE, will you consider building some more?