Just to follow up on this, my wife finally got it to work. First - there’s no way we wanted to go into the bios, or I probably wouldn’t be able to write this right now. 
The two graphics cards would not fit in the computer - too wide to go next to each other, so we took them back and purchased two USB Display Converters. They work well. If I did it right, you’ll see the pic I posted. Thanks for helping me get through this.
