I strongly hope you don't do this... I am buying up support for basically all kits, and splitting off numpad never seems to reduce the cost more than a few bucks on each kit, but rather increases the cost for me by $30 or so. I was planning to buy two sets of Shoko (one for display only, and another for use), and this will significantly increase the cost... Also, there are a lot of 1800 boards out there, and plenty of full-size users (though I suspect most of those don't participate on GH, or /r/mk much)