970 VR Drawcalls, Vertices, Triangles

Hi, I know that for Gear VR, there's a suggested limit of 100 drawcalls, 50-100K vertices guideline.
What's the number for Rift like VR, I have a scene of about 500 drawcalls, 500K vertices, which I tested using Unity editor with CV1, all seems good.

Still, is there any official guideline numbers available?

Thanks, the reason I want to ask is I have a bunch of near 1M triangles models that I want to use, but kind of nervous about put them in the same screen space.