Welcome to the forum.
You have landed in the right place as I have made a sausage with apricots. For a fresh sausage, I would do the following:
Dried apricots 75 g
Water 75 g
Chop the apricots coarsely, put in bowl and add water. Soak overnight covered or if you are pressed for time, at least 4 hours with warm water. Pour off any extra water on sausage making day. This should give you 100 g total.
Pork shoulder with some fat added 1000 g
Salt 13 g
You are trying for about 80 % meat and 20 % fat. I often add 10 % fat from back fat, or belly, or jowl to get to this ratio. You may have to ask a butcher to help you. Mix the cubed meat with the salt the night before you plan to grind it. The morning of sausage making day put the casings you are using (sheep or hog) into clean water after rinsing them free of salt (not sure what you are using). Before grinding the meat and apricots, spread them on a tray and put them into a freezer to almost freeze them. They will feel dry to the touch and this usually takes about 30 minutes. After grinding all the meat through a 6 mm (1/4 inch) plate, add the following mixture of spices:
Black pepper 5 g
Paprika 8 g
Garlic powder 2.3 g
Allspice 2.5 g
If mixing with a Kitchen Aid type mixer, this should take 1-2 minutes. You will see streaks of fat just starting to mark the side of the bowl and the meat will look sticky and cohesive. This will take longer by hand but you should see similar appearance. This is the bind your sausage needs to hold together and not be just ground meat. To stuff using the grinder with attachment, remove the cutting blade and plate and install the spacer piece (not sure what you actually have). Get some help. have one person feed the sausage meat (kept cold in the fridge after grinding and mixing) while the other person controls the casing on the stuffing tube. Allow the meat to pull the casing as it fills (I usually hold the casing back to get a good fill). When all the sausage meat is put through, tie the end and twist, alternating direction, until you reach the other end, then tie it off. Prick any large air pockets with a pin. Spread the links on a rack and allow to dry in the fridge over night. This sets the links. Let me know if you need cooking advice. You'll have to tell us how you do in your contest.