applying by hand...so which should be good to do wax+protect+remove swirls to some extend if not fully?
1.wash with meg nxt shampoo
3.as you say UC or UP or C476
4.then at last C845
What are you trying to achieve? If you're looking for paint correction, like scratch / swirl removal. then UC followed by UP will do the job, though it will wipe you off. C476 is an LSP, like C845 - so after UP top up with either one of them.