[Pinwheel (Doug)]

Hi all,
I'm starting to work out my first observatory for my 12" Dob. Being in a farming district I see these mobile field bins around every harvest. I can pick up an old one for about $500, It would not be hard to put a door & a floor in one. Also because they have wheels for towing on the road, I wouldn't require a building permit at all. There weather & water proof as to keep the grain dry if it rains. What do you think?