You would do it by hand, right? First of all, pics would be useful to see the condition of your paint. How old is your car? Fallout?
Clay!
There is really no point in using the Nano and the TW together. And talk to us instead of a buddy...
A cleaner and a LSP must work, but it is a rather simplistic combo. If you have flawless, or nearly new finish, it is sufficient. That doesn't mean it is ENOUGH, or GOOD, or OBSESSIVE.
Just look around a bit more, learn, and post pics. That way we can help you. When you want to use only these two products, then clean the paint thoroughly (which is a PITA by hand), and throw on two or three layers of TW. Okay, the cleaners in that will remove a little bit of the previous layer, yet you can go with the application getting more gentle and light. If it looks good, enjoy.