This recipe starts with the pork and then minces it but I can't see why using pre-minced pork should make much difference. (The fat content might be a slightly different but it would probably still work just as well):
https://www.cookipedia.co.uk/recipes_wiki/Pork_sausage_meat_recipe
I disagree alba. You can get excellent, very high meat content sausages at most supermarkets. M&S and Sainsbury's both do ones with 97% meat,no fillers, just spices.
I'm not sure I want to dwell on Paul Hollywood's sausage roll, it brings to mind a scene from a film (Porkies???) where a hen do are waited on by near naked waiters carrying trays of hot dogs. I'll leave your imagination to work out the rest.
Thanks all. I might give it a bash with the mince. I made sausage meat from a shoulder of pork, once. It was very good, but too much of a faff for this time of the year.