Thanks for the tips. I'm a systems administrator and I went through the usual troubleshooting steps. I singled out the Gameex server because at home or at work, via HTTP or FTP, using my i7 on Windows 10 at home or my Macbook Pro at work, every other download I'm getting over 80mb/s, to a variety of sites. Ditto to downloading from Steam, Origin, uPlay, etc. I'm absolutely certain it's not on my end.
The biggest issue is what has already been mentioned: the download tops out at around 2mb/s. In this day and age of high speed internet, for a 20GB file, that's just not fast enough. The other issue is the timeouts which occurred again in both locations. The download would be fine for about an hour, and then time out. Fortunately my FTP programs support a resume feature so I wasn't having to start over at 0.
I have an underutilized seedbox and I'd be glad to host a torrent or magnet link of this file which will probably offer much faster download speeds. The only trick would be making sure only authorized paying customers get access to the torrent.
I am pretty sure I managed to get the download complete, by unfortunately being a huge jerk to the Gameex servers by using a script to disconnect and reconnect me every 15 minutes and forcing it to resume. I have no actual idea how long it took to download but it was done in the morning, and I'm attempting an install now. Oddly after I extract the ZIP file I'm seeing 5GB but "20 GB on Disk", so I wonder if I actually managed to get the full file.
Edit: I can't seem to install the product. "Invalid System Pack Path" when I hit Go. Do I need to install BOTH Gameex and Gameex Evolution? I already have Gameex Arcade and the regular Gameex installed and I was under the impression that Evolution was Alpha and not really recommended for people to use. Sorry to be such a pest, but now that I think I have the file, I can't find proper documentation on how to actually install it.
My guess is that "Invalid System Pack Path" means that I actually don't have a complete version of the files and the screwing around I did trying to download did indeed did not work. I'm about to give up on this, I can't spend hours and hours trying to get the "One click Easy Method" working.