I'd go with cheap NVMe. Intel 660p is $100 a TB. I just acquired 2x 2tb out of 4 for my new array, they're wonderful. Games may not load much faster for x/y/z reasons, but large transfers, n other tasks are even snappier. When the cheapest reliable NVMe is the same price as = tier SATA SSD, i'd go NVMe.
and a newer, maybe slightly larger power supply.
i usually go evga on cards cuz of their US warranty center, but they're just as pricey as asus these days, if not more so.
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R.I.P. Zawarudo, may you OC angels' wings in heaven.
If something appears too good to be true, it probably is.