Here's the hardware:
Toshiba Tecra R950 (PT530C), 8gb RAM, 128GB SSD, Dedicated Radeon HD7570M, 1600x900, etc.
OS: Sierra 10.12.6, Clover 2.4 (v4318)
I've managed to get audio working, the mouse and keyboard work (though the trackpad is VERY slow so I'm using an external mouse for now, I can...