I have not contacted A-verdi for local pricing or delivery, but it looks like 20' sea cans go for 1400-1500.
It also looks like a 6,000# telehandler rents for ~$300/day (BlueLine, formerly VolvoRents, who appear to have closed the Jefferson Road location)
Similar price to stick building a shed or pole building of similar size with 3% of the effort or time spent.
Not sure if bitchneighbor would say boo about it, doubt it's covered explicitly in town code. 1-2 of them in the back yard where the eagles were would sure swallow up a lot of things and get them out of my way and out of the weather.