I agree with Al breakfast sausage is the easiest, no stuffing required just a little seasoning.
Figure out where you are going. I make small batches and like it that way. I stuff by myself and a 5 lb load is great, if I need more, I just reload the stuffer. But with 5 lbs it is enough to enjoy for awhile and I get a chance to build some more tweaking it each time.
I am relatively new to making sausage, although I was around when my Pop did it. I started like most making
"Cougars" Chicken sausage which on the board. I started with a manual grinder/stuffer. Its what my Pop started on too, turns out to be my great grandmother's LOL Who knew?
Grinding wasn't too bad but stuffing was terrible, so I decide to buy a stuffer. I see one that looks simple, basic level system you push it extrudes. Stay away from these. Popeye don't have enough spinach to squeeze thru 5 pounds of sausage with a 2 foot cheater! LOL
I then got an LEM 5# stuffer. I believe that any will do, I think Boyko told me about a Northern tools model that was really inexpensive. Get a decent stuffer, 5 to 10 lb range. metal, easy break down for cleaning and refilling.
Then the grinder. I'll let the pro's from Dover tell you. Everything I thought wasn't very right, so you'll definitely want to listen to them.
Don't waste your cash on underpowered or units with little or no parts support.