a 599 PC is not going to have a GPU strong enough to give you any decent VR, 599 is about the starting point for the GPU only, I would honestly not go with anything less than a 980ti for a minimum of future-proofing, and unless you already have one I would wait for a Pascal card, which in any case will cost at least that much.

in VR dropping frames / latency directly maps to motion sickness, so it's not a case of "eh, I can deal with the framerate not being super solid" like it can be on normal gaming.

This costs less than some flagship cellphones, 599 is definitely not that much all things considered.