> Hoping I can find a small lockable box with fan ventilation that I can put it all in so it looks a bit nicer to the casual observer
Stop by the local military surplus store (or gun store) and look at a 30 cal ammo can.
Hit it with some spray paint and then a stencil with some kind of a label... a group
name, your callsign, the word "TRACKER", or whatever you want...
Mike