I'm not interested in the keycaps, but I just wanted to give my two cents on the IC policing.
I don't think it's reasonable to expect a fully laid out, well structured IC similar to the ones linked above for something like this. Sure, it'd be nice, but the downright hostility to someone who's essentially asking "hey, I wanted to buy this but the manu is only interested in bigger batches - anyone else interested in making it happen?" is bizarre to me.
It's a worrying trend I've seen for a while now, but this thread is probably one of the most obvious examples of it. People seem to have in their heads a minimum requirement of what "really" constitutes an IC, and I think that bar's been raised too high. GH itself doesn't seem to have any specific rules about it.
Don't get me wrong, I think in most cases it's good for an IC to be well structured, and containing enough information for any viewer to make an informed decision on whether they're interested. As a project grows closer to GB (and thus an exchange of money), it's absolutely reasonable to expect more solid information. You want to trust that the money you're spending is going to be well spent, and you'll get the product you want without issue.
At the same time, I just think people should be more understanding that some projects are in earlier stages than others, and there's no minimum requirement on how developed a project is before asking other people's opinions.