never heard of OLOy, i did some digging seems they want to be called owl? they are a chinese company and reviewers have them as solid memory, don't expect crazy overclocks but if you run them at factory settings or xmp, you'll be good
you might want to just pony up for a gen4 nvme
the toughpower gf1 is rated high by the powersupply nerds, so you should be good there too
PSU Tier List 4.0 rev. 14.8 (END OF LIFE) Last Update: 27-07-2021 Legend : Gray - EoL/obsolete and/or otherwise not recommended for purchase. Green - small form-factor (gold and blue colors are disregarded due to scarcity of SFX PSUs) Gold - best units in the tier (includes requirements for blue ...
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i rock the same cooler, it's nice, install is a bit tricky on a tigher case, but your p500 should be fine, theres a lot of room there, also you can just install the cooler outside the case and bring it in that way.