I raised 2 AGH gilts one year for meat on a suburban sized lot. Neighbors didn’t catch on until they saw us trying to load the pigs on a truck for slaughter. AGH are an ideal homestead breed as they max out at about 100 lbs for gilts. If you give them too much mud to wallow in, they will smell. They did an excellent job of eating our scraps, and some feed. I probably overfed them some.
One thing to consider about pigs–as opposed to sheep–is that you can get pigs to raise from piglets fairly easily as they eat a protein rich diet that costs a farmer money to provide.
Sheep are harder to procure in this way because the farmer already has the grass they need.
For our homeschooling family, we think it is fun to get animals to raise for meat. Someone else, who doesn’t want a project, could get in contact with a farmer through craigslist. You may be able to buy an animal to take to slaughter or buy meat directly from this farmer or maybe the farmer will have you contact a butcher to give instructions for how your segment of pig/cow/sheep should be done.
Also, if you have friends who homestead, perhaps you can take 1/2 pig they won’t use. For example, pigs are social animals as stated above. So, your friend needs to get 2 at least. But maybe your friend only wants 3/4 of a pig for their own family ( pigs are big and only last frozen 6 months). So that leaves 1.25 pigs available.
Just some thoughts.