Question Is this layout good?

Getting a RM850x (2018) white on monday, my first modular PSU. This is what I'm planning to do:

Is this correct? That's all I want to know. Probably a very dumb question but then again better safe than sorry.

Also, I will be using this sleeved cable starter kit from Corsair:
and the SATA power cables will be the ones that come with the PSU.
Please tell me if it's compatible with the RM850x (2018, White).

Thank you.
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