I thought i wouldn't need anything to make sausage except spices when i shot my 1st hog... WRONG !
Unless they've found a deer feeder Those things are as lean as can be and need some fat to make proper sausage.
I've mixed deer, wild hog, & domestic hog to make some awesome sausage.
I've made friends with a butcher... now when i need to make sausage i call him and after 2 days I'll get pork fat.
I've made sausage from the biggest hogs , even cooked shoulders, hams, loin. If properly cared for , ( touching the hair or hide then touching the meat is a NO-NO), I've found size doesn't matter.
My old friend, George Wikel, thought the bigger the hog, the better the meat. He would wash the hide when he got it home, then get a bucket of soapy water, a big brush, and get the oil from the hair/ skin, before skinning. If you touched the hair then the meat he'd trim off what you touched and growl at you.
His wild hog cookouts were legendary.