Earlier quoted context omitted.
I admire the initiative but there is no way people will pay for a search engine.
A paid search engine could work once it proves itself . This means they need to put a significant amount of work and server resources into it first , get a critical mass of users and then they can make it paid.
1) Build a better/equal search engine to that of Google
2) Convince people it's better enough that it's worth paying for, or that their privacy matters enough that they should pay to not use Google.
3) Maintain your costs of operation and make a profit
There is no way I would invest in a company that attempted this, but as I said, I admire someone that would try.