Great feedback, thanks one and all.
A few bullet points:
- just need a small storage space, I already have a shop.
- if a bin keeps grain dry, ought to be fine for my purposes. Note: take a look at all the storage facilities in every direction.
-I would erect on a slab, probably with buried wire mesh around perimeter to keep the little b-stds from tunneling in at grade.
- not really interested in gentrification of said structure thereby becoming one of " them". But I like the possibilities.

- putting a door in a round wall, piece of cake. Don't need a youtube video, I'm a builder by trade.
I'm gonna do a cost comparison anyway versus building a shed.
The HOA won't complain since our rural subdivision has a water tank for fire suppression....yep, disguised as a grain bin.
So far only one snafu....the better half thinks it will be a shoddy( not sheddy

) addition to our property. Guess I still don't have her figured out after 23 years.