I opted to go with an OEM version of Windows from Newegg, being that this computer is for work. If it were for home, I'd probably take a chance on a cheaper option. Also, I got permission to use another budget line so I ended up purchasing the following parts:
Ryzen 5 1600
ASrock AB350M Pro4
GSkill Flare X 2400MHz 2x8gb
PowerColor Red Dragon RX 560 2gb
Samsung 960 Evo 250gb M.2 SSD
Corsair Carbide 200R
SeaSonic M12II 520w
I got all of the above with windows for about $900, and I should be getting $45 back in rebates. I ended up not ordering a storage drive for the time being. I have an external USB 3.0 1TB drive that I will use for storing larger files for now (as well as some server storage). Next year, if need be, I'll add another internal drive.
Thanks, everyone, for the help. Parts should arrive Wednesday and I'll try to post some pics next week.