Nitro+ worth it?
I guess not for that much more. A 10% increase is substantial, and I don’t think the difference in actual performance is enough to justify it; but you also said that your region can get toasty in summer, and the Nitro+ has better cooling which could help. I don’t think the Pulse will get too hot to work, but it may be something to consider!
DDR5
Those are one of the best performance to price ratio, and they’re very inexpensive for what they are (plus full support for AMD overclocking, EXPO I think it’s called); you can also go higher frequency, but prices will go up as well.
cooler
Good call then, AIO will probably perform a bit better with extreme high ambient temps
970
All good, a 970 Evo Plus might be cheaper so why not!
5.0
Yeah, there’s no way gaming will saturate PCIe 5.0 anytime soon, no need to pay premium for specs you won’t benefit from
Happy building and gaming!
Haven’t seen this mentioned, but did you make sure to plug the display cable into the GPU and not the MoBo?
edit: nvm, just saw a comment with same suggestion