Hello there @tgTosters!
From what can be gathered from the community, and comparing benchmarks from your listed models, the most balanced choice between RTX capacity and VRAM is indeed RTX 4070 Super. Now, if you are worried about the VRAM more than anything, there’s an alternative choice, the 4060 Ti 16GB, which a bit less raw power compared to the 4070, but it has a definitive edge on memory, and still supports RTX.
As for the CPU, the Intel i7-14700K is better overall for UE development (specially for compilinmg), it’s only disadvantage being a bit demanding on cooling, but as long as you have a good cooler setup, it should work just fine.