I've finally found something that can replace the sausage roll mix that sanitarium no longer sells.
I have tried it out and it makes sausage roll well and tastes fairly similar to me, (it has been a while though i've forgotten a little bit of what the Sanitarium ones tasted like).
It's made by Vegemeal and is made over in NSW.
Check it out, it's for sale on Ebay...
Type in 'Vegetarian Sausage Roll Mix' and it'll come up.
Hope you find this usefull.