2. He wouldn't even need a nominee structure to cut costs. Of course it's more anonymous but not necessary in his case. If you are going with an LLP, just structure a profit transfer agreement and you won't even have to invoice. About UBO: The Banks will still want to know who the UBO is. And in regards to the UK (Ltd), the UBO will still show up if I am correct. If he wants to remain anonymous, LLP with two Offshore Companies with Nominees set it would be the way to go. But as I said, if everything is legal and privacy isn't needed, I would go the simple way.
Yes but he doesn't want his clients to know or to be able to look up where does he live. It is not against banks, privacy is gone these days, apart from hiding some details in public registries through the nominees.