My first sausage I made I only used one tool.
It grinds, it stuffs, it doesn't slice or dice though. You can probably get one at a pawn shop or ebay for less than 30 dollars. We been using this one as long as I can remember, I think it was my great grandmothers. LOL
Electric grinders are nice, but buy a quality one you can get parts for. Small low powered grinders are frustrating.
The stuffer is the first thing I wanted having the above. Once you've made sausage with the above you'll realize a good stuffer is a necessity and don't do as I did. That little curved stuffing horn thingie, unless you have arms like the Hulk, and a 3 foot cheater pipe, opt for the hand crank. 5lber is a great start. It can do it all where the bigger more expensive can not always say that.
Remember the butcher can always grind for you at a price until you can get to a deceit grinder. Besides then he has to clean up....
My opinion is small 5lb batches are the best till I get good enough for a bigger stuffer. Its enough to experiment while not being too much incase you don't like it to easily give away. LOL Besides 5 lbs is no work to do, its fun, easily cleanable, easily workable, and easiest to learn on.
When I get as good as some of the guys here, I may buy a bigger set up, till them I am still learning and having fun. Butts go on sale, a pair a butts makes enough Andouille, boudin, and breakfast links for about 2 or 3 months. Its fun and not enough to make it work to solo.
That's where I am at. Just thought I'd share.