I wish someone sold a cheap but good quality VR set with dispay + HDMI driver board to be hooked up with Raspberry Pi. Go seems ideal if it just had HDMI port.
Technically it can drive up to 3840x2160 at 24 Hz if overclocked, but the video decoder is limited to 1080p, limiting practical use cases. But you are right, 1080p screen would be better fit (for even cheaper price). I'm currently using OSVR HDK (the original version), but that thing is pricey for what it is.