Well, I can tell you from a lot of research in purchasing headsets to use in an adult education environment: it'll have to be round about $1000 all-in to be competitive. That's what Oculus Quest 2s with Elite Straps through Oculus for Business or Windows MR or HTC Vive headsets with min-spec VR laptops will cost you. Pico Neo 3 is a little cheaper, but it would have also come at signficant extra development cost for us.
Basically, any way I tried to slice the problem of "full VR system I can box up and send to people without having Facebook spy on them" came out to $1000/ea. We ultimately went with Oculus for Business to keep everything small and easy to setup.