Want to get some PCBs made up? It looks like a tough enough build. I'd probably end up changing it a bit to have sockets for the drivers... I don't like to solder those PLCCs to the board, it's tricky to get them to do what you want.
About the review, this would be very nice. Yes i could send it to you. I will try to make some videos in the next days, and then you it would be available for you.
About the PCB's, i currently do not have the idea to make a kit, since the enormous efford (and finanical) problems to complie with the "electro laws" of switzerland. For a private person, its nearly impossible to make a kit you can sell, unless you have a lot of money to burn.
Feel free to take my design and change what you like All my stuff is and will be open source. And yes, for the HV5122 there is a QFP Package available at Mouser or Digikey.