I think you are being overly optimistic, even by my optimistic standards! I ran my last set of DDR4 at 1.4V for well over a year before I sold them (and tested them before I put them up for sale) and they were fine, personally for 24/7 use I would not go above 1.4V, but please note not all memory is the same, yours may not stand up to voltage as well.
I would suggest to start, if you want to be optimistic aim for 3000mhz, initially loosen timings to CL17 (or 18), and drop the other main timings by 2 digits, increase the voltage initially to 1.375 and test, again in my personal experience modern games is the best way to test stability, maybe start with AIDA64 and confirm with a couple of demanding games.
If all is well, tweak downwards, so the easiest route to that is by just lowering voltage firstly in very small increments, see where that gets you. Secondly, work on that balance between voltage and timings, starting again at 1.375 but try tightening timings BUT just one at a time, it can be a time consuming process but if the end product is a stable system with realistic voltages and sensible timings and increased speeds then it's a winner..... providing you do not sacrifice latency too significantly that it negates the speed if you get my meaning, RAM is often a fine balancing act.
Having said all that, for anyone inexperienced in memory overclocking, many would recommend going just 10mhz up to 100mhz max at a time and see what speed/latency combination you can achieve initially with 1.35V, obviously all this takes longer and I am impatient but be sensible with timings and voltages otherwise you may find you will need to invest in new RAM.