No need to prepare too much, 100,000U is enough. And it’s possible that even 100,000U won’t fit. The total limit is only 500 million. That means 100,000U maxes out, 5,000 accounts. 5,000 accounts, is that a lot? Not really, right? And it’s a 'get on the bus first, buy the ticket later' situation. Got it? Put the money in first, then find someone to KYC. And if the KYC fails, you can still get a refund. How considerate for big players! So it’s possible that even 100kU won’t fit. The second round of insulting everyone’s intelligence begins!