Hello, fine member of Reddit

I’m building a rackmount workstation focused on structural biology + ML. I’ve attached some screenshots of various builds. The primary focus is a budget of around £ 11k with a preference for an A6000 Pro (Blackwell), with a fallback option of an A5000.

Primary workloads

Protein structure/design work.

LLMs and protein LMs.

My main question

What are the right components (CPU) to pair with my GPU? I do have a plan in the future to expand to a second a6000; however, that would be the last expansion for this specific workstation. I have created a few different builds with various CPUs, but I’m unsure which one to choose for this build. What should I prioritise?