The QL-SD driver seems to be finished (note that it currently doesn’t work with the MiST FPGA board, but there are no more known problems with either the original QL hardware or the MiSTer FPGA machine).
Now the boring part has begun, which means hours of reading tax related stuff (selling stuff internationally is hard!), writing/updating the manual, preparing an order page, preparing shipping labels, etc. I really don’t enjoy this part of the process.
Anyway, as a short teaser, the hardware does exist now in some quantities:
I will probably open the order page publicly starting September, after my holiday.