Maybe give City Super or Jason's a try. If you don't mind the sweetened ones, 7-11 used to sell 'single serving' cartons for like 30nt a couple of years ago, just too sweet for my taste also probably not all natural ingredients. I think they still have it.
You could also give goat milk a try. It has lactose (less than cow's milk) but I have a friend who is lactose intolerant but goat milk is not a problem. Also it has more calcium and easier to digest than cow's milk. Tastes weird for about the first 7 days. Now I actually enjoy the taste. Of course you need home delivery service for goat's milk.
Philips electronics makes a bean and nut milk machine that is essentially one button you need to push, but you do need to soak them and it takes about 30-40 mins. I use it exclusively for soy milk and add a little honey as a sweetener.