>>398211665
>If it can look like my avatar is pressing buttons and interacting with things using its feet, that'd be a big win.

If that's all you want, then just buy FBT trackers and find a Rin avatar. Lift your irl foot towards whatever you're interacting at the same time you move your irl hands and controllers. Nobody will see the controller movement since the avatar doesn't have hands. Something like video related.