It's actually not that big of a deal to run coh2 smoothly in 2020.
I don't play 4v4 but in 1v1 to 3v3 I basically never get any unplayable lag. The FPS drop in late-game 3v3 when there is plenty of artillery but it's still manageable and there will be a 64bit version of COH2 soon (TM) so it's only going to get better in the next months.
I play on a Ryzen 7 2700X + RX 480 + 16 GB DDR4 (3000Mhz). There is no secret to COH2 performance.
I'd suggest switching to AMD instead of Intel to get better value for your money especially considering your budget seems to be very limited.
You can get an AM4 mainboard for around $50 and build from there.
Completely forget the stuff you listed here, GTX 1030 and 4GB Ram in 2020 is a terrible idea.
Thank you for your answer, i guess ill check some second hand / used but better parts.
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