You need to ask around and see if any of your neighbors or their friends are retired contractors. It is really simple to put up a stick built shop building if you have some help from someone with the tools and experience. Pour a slab and then you build the walls on the slab and tilt them up into place. A small crew of 2 or 3 guys can put up a small shop in a couple of days. Get the rafters built off site and delivered by truck. You need to rent a a couple pieces of equipment from a local rental yard.

I had a steel building put up a few years back. It was a super nice building but for a small shop I'd go stick built. Especially as far north as you are. Use 2 x 6 studs and stuff those walls full of insulation so you can keep warm in the winter. No windows, a man door and a roll up door should be all you need.