May I add something as someone who has imported one or two things from China before

Buying some small stuff like clamps or so is easy. You mostly get what you order.
But a whole setup, even a milkcan with parts can be really a pita. It should be clear, that the chance of grabbing a piece of shit is here really high. We have had a hard time to find a good source for milkcans and mine do cost far more when I bulk buy them before tax and customs. So there is a reason for everything and I am really not the person who spends money easily.
The same goes for simple parts or whatever. Cheap in China means really cheap.
I sit here on a pile of things, that are unsellable or simply bad craftmanship or plain ugly and useless. All pieces be bought for trial. Given what we spend on sourcing and quality control I think our milkcans are not expensive at all. The best thing: someone else had to quarrel with the factories, someone else did the import duty and you get what you see in most times in less than a week from us, with support!