I've received quotes from GMK for the kits and have forwarded them to Novelkeys, MykeyboardEU, and Zfrontier (NA, EU, and CN proxies for the upcoming group buy)
Given the interest on this set, the current demand, and MOQs, I've opted not to offer the 40s kit and just have Core, Novelties, and spacebars with some minor updates on the spacebar kit.