The Orion is not part of this GB and is out of my control since Duck/TC is planning on holding a GB with someone else on GH for Orion. It wouldn't be right for me to do this. However, I'll still enquire into this and let you know..
I'm not entirely sure if you can omit the bottom plate for an acrylic plate since the Korean GB on kbd4u requires you to order the whole set and add 7,000 WON for the acrylic plate..