Hi! Congrats on your approaching surgery!
Is your surgeon giving you an option on the liver shrinking diet? I had my surgery at Luton & Dunstable and we only were given one option which was the milk diet. I could have 5 pints of milk a day along with sugar free jelly, a salty drink (Bovril or stock) and tea coffee and water for the two weeks prior to my surgery. It sounds awful, but once you get into the swing of it, it's fine and actually makes life very easy as there's not a lot of thinking about what to eat.