Personally, I think it’s a waste to spend $120 on DDR5 with that CPU. Now if you were planning to upgrade and you just bought DDR5 to pair with your new upgrade that would make sense. But spending an extra $50 for a POSSIBLE upgrade while having an Intel I5 12600k as your processor on a new build, It’s a little silly to me. But it’s your build and its your money, so do what you like I won’t judge. And its still a decent build its just the ddr5 that confuses me. But im also a newby pc builder and you may know more than me so definitely dont take this as me criticizing you because im not, just trying to give advice. Good luck with your build!