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I agree that in-stock would be great. If you join their discord you can get a much better idea when they're going run R2 or R3 of items that can be hard to come by right now. 
I think that if I have to do a group buy, this is about as good as it gets. I mean they delivered in a month a few weeks. That feels like a pre-order. Also, they do unlimited orders which is also cool.
If only QK would sell their stuff in-stock. They run a group buy, everyone talks about how it's the best thing in its layout class, then it vanishes forever. Bizarre.