So many people have fallen victim to most of the third party mining equipment stores. Most of them are created to take advantage of the current low supply of miners. Be very careful
For example, I have seen various members complaining about Sesterce mining and yet it's listed as a "trusted Vendor" in the list of the link you posted above.
I know that the equipment is out of stock currently but why not get in touch innosilicon team via official channels. Maybe you can try to find out from them about their official vending partners/stores
