Anything over about 150#, we leave for the coyotes, buzzards, and worms.
The shoats and sucklings are pretty decent eating. Problem with wild hogs is they're often not much fattier than any other wild game, and when they are fatty, they're not fat from being farm fed. When cooked, the fat never sets up like you see in bacon from farm-raised pigs.
Trichinella and pork tape worms aren't a thing in feral hogs in the US. Most trichinella infections in North America come from undercooked bear, and there are thousands of times more pigs killed in the US annually than bears in the US and Canada combined.
Brucellosis and a few other microbes are potential problems. Wear neoprene gloves and try not to cut yourself when you're cleaning/butchering the meat, cook to an internal temp of 150 or 155 and you're good to do.