Alternate delivers to Spain. That's three countries apart and depending on destination approximately the distance between Dallas, Texas, and New York City. I just confirmed with someone who works there that everything gets delivered from the same place in Germany and that they do sell those comletely freely self-configured systems; only thing they don't sell internationally is big stuff like fridges, due to logistics partners limitations. Also, you got Walmart. Don't see how that wouldn't count. I'm also not talking about companies like CyberPower. We got that here, too, like One.de for example, and they are just as crappy.
There is no excuse here. They don't do it because they don't want to, not because they can't.