Don't worry, it doesn't need to be pretty. It just needs to carry a basic chassis, some treads, a motherboard, a camera and mic combo, and a radio unit.

I'm hoping it lacking a real brain will keep it immune from most of the mist's effects. I can give you a sketch to work from if you feel up to it. [ As long as she can stay busy with this project -- whether it leads anywhere or not -- Catherine can keep it together, no problem. ]