Since he won't be able to fight any seller who cheat him, he needs to be wary of being cheated and careful more than he is careful with Tommy.
When he was checking the listings, he checked for the mass, density, and purity of the Living Metal that was being offered. He did this to make sure that he wasn't going to be ripped off.
He eliminated listings that didn't share specific information about the Living Metal. Any listing that was vague about what they were selling seemed dubious to him, so he decided not to go near them with a ten-foot stick.
After he found one that he was satisfied with, he paid for it. Each kilogram of it was sold at the rate of 800,000 energy stones, and he bought 5 kilograms, so he paid 4 million in total.
The 4 million was removed from his account immediately after he made the transaction. Then he received a notification that the goods would arrive in 5 to 7 days.
