A total of 2 reviews of this product on Reddit.
You could also get it off Amazon, but other than that and the website are the only ways you can buy it.
I like this, but I’d go for a nicer (and yet cheaper) mechanical keyboard like a Keychron ($50-60): https://www.amazon.com/Keychron-White-Backlight-Brown-Switch/dp/B08CNDQJDN/ref=mp_s_a_1_4?dchild=1 it’s not wireless though
He can also get a 144hz monitor for only $10 more, which is a nice quality of life thing: https://pcpartpicker.com/product/DjH8TW/viewsonic-vx2758-2kp-mhd-270-2560×1440-144-hz-monitor-vx2758-2kp-mhd
Finally, I’d note that the 5600X is a better choice than the 3700X for architecture and CAD, because all those programs are single threaded and benefit more from a strong single thread than having 2 extra cores. I’d think upgrading the CPU to the 5800X here would make sense as he’s got ~$100 left over, and he can get the bundle at Microcenter (which also happens to sell the 5800X at only $380).