To anyone seriously considering doing something like this, you will find that the carbs are challenging to get into a shake.

You can get all the right vitamins and minerals. On that note, don't use calcium carbonate like he does unless you want kidney stones; use calcium citrate.

You can get high quality CFM whey protein assuming you're okay with getting all your protein from whey (grilled chicken is still a better idea for other reasons).

However, the carbs take up a lot of volume. You can use steel cut oats, potatoes, sweet potatoes, white rice... (brown rice has arsenic) You will find that it doesn't fit well in the shake. It's easier to eat it as food. My experience so far anyway...