That computer is going to be badass.
I know I’d 100% wait for at least the 3070, or the new AMD cards are being annouced on the 29th I believe. The 2070 super is going to be your bottleneck.
I can’t comment if onboard WiFi is any good, but if you decide to get a WiFi card, I use this one my connection is 400down/400up and it works at full speed...
https://www.amazon.com/ASUS-PCE-AC68...01648367&psc=1