>>383604285
>5 by 7 space
I hope you mean yards (or meters) not foot.
Vive trackers are your best bet for FBT.
Haritorax is untested tech with no public availability.
Tundra's only selling point over the Vive trackers was its "low" price point, which isn't actually low enough to justify its own set of problems not to mention general unavailability.
You'll also need peripherals, like lens covers (prescription if you wear glasses) various cables and cable management systems for the headset as well as for charging, frunk fan for heat management, etc etc. Be prepared to spend 1500+ USD if you want the whole shebang.