Sausage making is not all that difficult, unless you want to get in to the dry sausages.
I would suggest pick the kind you would like to make, and then do some searching and find 4-5 recipes, go through each one and out of all of them pick and choose your ingredients and the process. Pick your casing type, natural or collagen. Now have at it.
I will say for myself it is better to have a grinder and a dedicated stuffer, stuffing with a grinder is not and easy way. In fact you don't even need a grinder.
I have 2, a large cabelas #22 I believe and a smaller kitchener #8, but when I used to make a lot. I would go to the meat guy when I ordered the meat and they would grind it how I wanted for I believe a dime a pound at that time, I would usually make 25-30 pound at a time. I figured out for $3.00 I couldn't dig out that big grinder and set it up and then clean it and put it away. I will caution though, as it took me a couple times to get it right, make it clear that you need at least XX pound and it is okay if they go over by 5 pound just not under.