It turns out running bootcamp on a macbook doesn't meet the recommended specs for Oculus Rift, so I built a PC.
I wanted a small-ish case, just to take up less room. No real ambitions of carrying this around, but you could. The GTX 980 graphics card is a step above the Oculus + Vive minimum requirements, and fits well with the upper drive bays removed. Actually a good bit of space left.
Shown with Cardboard for scale. :)