Full body actor avatar record in real time answer?

can someone tell me what hardware you need to record a legs movement with the VR from the bust up it is not a problem but the legs that go with VR for unreal engine real time ???

Vive had some sensors sold separately, that is for single dev indie teams.
Or you can google for motion capture setup, i think all of them support unreal now.

I have already searched but there is only bulky stuff not compatible with may home VR space I look for something for small space and bugged to record full body movement skeletal mesh
there is only the pantomime clown suit with bright dots and cameras in various less or more ridiculous versions

ya sport unreal now plz.