What you actually need to do is make sure your model is centered in the Viewport. For VR outputs, the location of the pivot point of the model is not relevant at all.
Enable the yellow Model selection tool from the Main Toolbar, and use this hotkey to center the entire model in the Viewport (Shift + Ctrl + Left Mouse Button). Then simply zoom in to fill the Viewport with your model.
Please watch this Visualize tutorial explaining how to set up your project for VR render step-by-step: