Make sure you get it all working before you get out there. Most non-astronomy people have pretty short attention spans when it comes to someone fussing over equipment trying to get something to happen. Also, based on my experience, people may say they are interested, but when it comes to standing around in the cold in the dark, interest quickly fades. Hard core astronomy nuts, will have their freezer suit, and are prepared to tough it out long after the civilians have retired to the van, or the fire.
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