Still in doubt about touch panel setup

I was thinking about using the lovelace ui.
A Fire 8 hd tablet
Chrome with a kiosk plugin

but I’ve remaining questions
unlock on moving in front of it? can it be done using tasker?
power (qi charger or ???), I’ve no outlet in the neigbourhood immediately and I don’t want long cables from touch panel to outlet
mount, was thinking about magnetic

I need links to material that has proven to be cheap but good