@Grimbli
1 - I highly recommend AGAINST the 2080 Ti, unless you specifically want RTX at 1080p 60fps. It's only about 30% more performance than the 1080 Ti, and it costs twice as much.
2 - I assume by radiator you mean an AIO/CLC, not a custom loop? If so, they're overhyped. They don't offer a...