2 years ago I invested in a grinder and sausage stuffer "Meat Your Maker brand"...around Christmas they had an incredible sale. I think I gave around $300-$350 for a .75 hp grinder(this thing is a beast! can grind 50 lbs in minutes) and a 15 lb stuffer. I was sick and tired of getting a $300 bill for smoked sausage that I felt like I could make just as good at a fraction of the cost(I used Van's)
I have enjoyed doing it myself sooooo much. Yes, it's time consuming. Yes, it can feel like work if you're in a hurry. I typically do it during Christmas week on a rainy day that I can't hunt. As we kill deer during the early season we debone and trim off all the fat/silver skin and freeze in gallon freezer bags until we are ready for a processing day. Go buy some pork butts and pork fat for the smoked sausage and fire up the big smoker. You can make them as fatty and juicy as you want and add whatever seasoning you like. I have found I a seasoning I like with Rebel Butcher in Pearl, MS. I add some whole mustard seeds to give it a bit of German flair.
For burgers, I mix about 60/40 with pork butt and pre season them before I freeze in 2 lb bags. It is phenomenal for burgers, chili, spaghetti, or whatever else you use beef for.......yes, sometimes I prefer a beef burger but it's so easy just to set out a pack of frozen meat before I leave the house in the morning.
My suggestion...get your own equipment/maybe partner with a hunting buddy and do your own. These processors around the Jackson area are ridiculous.