One can guide the build if you live in US. But if you are buying it from Canada you are stuck with ordering both a graphics card and a WiFi system separately. And good luck with finding a WiFi system appropriate to this Workstation.
At bootup, I get an error saying that the computer is configured for a front chassis fan and no fan is detected. I don't understand why this is. The fan should be installed if the computer is configured ti have one. Also the computer had no graphic card when I received it. It was not obvious from the specifications that the computer would not have a graphic card.