something at DigitalStorm, like the following, below that I just fiddled around with real quick:
Configuration Code: 1380150
Configuration URL:
https://www.digitalstorm.com/configurator.asp?id=1380150 dropping from Windows 10 Home, back to Windows 7 64 bit, actually costs an additional $52.00
I wouldn't bother with the Acer you listed from Newegg....... the CyberPowePC, I would recommend going to their website and buying it directly from them, and customizing it to your liking
below, I fiddled around a little with the cyberpowerpc you linked to at newegg, over on the cyberpowerpc website..... yes the price increased, but you can make it like you want it
Configuration#: 1HQX7F
http://www.cyberpowerpc.com/saved/1HQX7F <--- think after the changes of MB, System Ram, Videocard, PSU..... the price was up to $1,999.00 before rebates... but this was just me fiddling around, you can drop things back down to whatever you want, which will give you the price that Newegg is showing........ but you also can opt for Windows 7 Professional 64 bit, and still be way under the $1,500.00 limit you posted as your budget
hope this helps
TC