Stork - thanks for your quick reply! Since there's no web drivers in Mojave, I pulled my nVidia card and I'm just using the iGPU. Having issues with getting my 2nd monitor to be recognized once I'm in macOS (while booting up, both monitors are mirrored however). Would this be because I chose the emulated NVRAM option? I'll go ahead and redo Multibeast with the non-emulated option. Thoughts appreciated. Thanks.
EDIT: My left monitor is working; however, the right one says (on the monitor itself, not coming from the computer) nothing detected coming from the computer. What's odd is if I move my mouse all the way to the right, it looks like my mouse goes off my left screen to the right like its supposed to be going to my right-monitor.