A YouTuber has built his own VR headset for a little over $150 and made the whole project open source, so I might just give it a go

Virtually affordable. For many, virtual reality hardware is still an expensive niche to get into. Even our top budget pick in our best VR headset …, Virtually affordable. For many, virtual reality hardware is still an expensive niche to get into. Even our top budget pick in our best VR headset … , PCGaming 1 News