For the RAM, why not 8x4gb chips? That might save you a bit of money, but I suppose if you decided to go up to 64gb, the 4x8gb might be smarter, but that CPU only supports 32gb. I don’t know much about the other stuff except I might persuade you to consider a different CPU if you’re considering C4D usage. C4D doesn’t use any GPU to render and all your preview and renders are CPU powered. Go check this site out for benchmarks and scores https://www.c4dcafe.com/ipb/Benchmarks/cinebench.html
I have the older, but great i7-3930k (Q4 2011) I bought last year and it’s been a pretty good little work horse – got a pretty good score on that chart comparatively albeit overclocked to its max speed of 4.9ghz (not recommended).
I really comes down to CPU power and of course what combination of CPU/mobo/RAM you can afford.
Good luck!
Jason Jantzen
vimeo.com/jasonj