My first inclination is to say "You're Nuts" but being the goodhearted individual that I claim to be, to soften the blow, I wouldn't recommend it sir.
I don't pretend to know what Michigan is like but in Oregon's Willamette valley, sheep are a big commodity because their is a symbiotic relationship with the grass seed growers. Growers have thousands of acres that are grazed to encourage more shoots, more shoots more seed. Shepherds pay pennies a head a day for the temporary grazing job and move on.
Sheep need shearing, foot trimming, vaccinations. You need proper handling equipment like gates, panels and pens. Steel for permanent location, Aluminum for ease of movement to different places. It is considerable capital investment. At your age there aint any sense in confining them and wrestling them to doctor them. You will need proper set up. I don't see a return on it and don't know how much ground you have.
You need to first examine your market. Raise and sell as feeders? Sell at auction or private treaty? You won't get jack for your wool even if it is designer wool by the time you pay off your shearers. How many ewes can you support? How many bucks do you want to have around? Breed preferences?
It's a young mans' game sir. Lease your ground out to some one with some animals and watch em through the window.