Builders Analog Laser Large Droid Range Optical Indicator Device

Think about how much time we could save if we could have the OD of the dome & sphere, or how big are those orange circle panels, Radar Eye surround OD or any close measurement when we saw BB8 at CVI?

I have been looking at ways to get those measurements directly from droids, as well as other relatively small features on BB8 without touching it from up to a minimum of 100m away. It also has to be affordable (doesn't cost $3200US) that a bunch of us could have stashed in our kits, and very sim