Looking to purchase a new PC in the next week to multibox 5 wow's.

i9 9900k
RTX 2070 8gb
32gb 2933mhz
256 m.2 pcie nvme ssd

It appears that the above specs are common for a 5 box setup.

I plan on primarily doing world quests, 5man dungeons and node/npc farming and all activities will occur in the BFA expansion. Is the setup listed above overkill if the minions are running at ~20 fps low distance render lowest settings ect and primary is at medium graphic settings (shadows, AA ect) avg 40-60 fps?

I have a budget around 2200$ USD. Would a AMD CPU or GPU provide better value or performance?

Also, I will only run WoW no streaming ,music , or internet during multiboxing.

Last comment, currently looking at an AW Aurora, would anyone recommend ibuypower or cyberpowerpc as an alternative? Where would I find info on which motherboard, ram brand spec, ect I should select ( a little overwhelming will all the options)

Thanks for help =)