Where to Invest: Long-Form Multicam Projects

Our public access station is looking to invest in a new editing work station. A large amount of the videos we edit are long-form multicam edits, usually lasting an hour or more and featuring 2-3 cameras. We are shooting in 1080p 60fps maximum, usually AVCHD or AVC mp4s. Our current set up seems to struggle the most with these types of long-form projects, so I want to make sure we put money into the right components to help these projects run as smooth as possible.

Based on my analysis, the CPU seems to be the thing that gets hit hardest with these projects, so I already know that will be a big component to consider. What is considered the current top of the line CPU for video editing and rendering with Adobe? Intel or AMD? Is an i9 worth the price increase for this kind of work, or is a top of the line i7 just as good?

What impact, if any, will a GPU have? Does a high end GPU like a RTX 2080Ti have a big impact on editing over say a 2060?

How much of an impact does drive speed have? Will I see a big improvement if we went with SSDs as opposed to a 7200 RPM mechanic drive? Or a RAID 0 array?

I know RAM is a major factor as well, but also know the more is almost always better. But should I put much thought into the speed or type of RAM used?

As I said, I want to make sure we invest in the right parts as this is first and foremost an Adobe Premier Pro editing station. We will be going with Windows 10 as the operating system.

Thanks for any advice!

[Moderator note: moved to best forum.]