I'm not sure why you need to take liquid form and can't go for chewables, but anyway..... When you're given the list of things you need, ask for a list of places to get them. You're not the first one who has been given this list and for sure they'll have the info you need. Don't ever hesitate to ask your medical team a question. You won't be the first one to ask it. And the only stupid question is the one that goes unasked.
I take Flintstone chewable vitamins. Just looking at the packaging now, it has 60mg of Vit C, 200mg of Calcium, no mention of Zinc but I know there is another variety in the Flinstone brand that has Zinc added. I just don't like them.

Check out the ingredients of a few brands and see if you can find one that covers all of your requirements. That way you only need to buy one bottles rather than one for each thing on your list. I've tried the gummi bear kind, but they sort of stick to my teeth and I don't like that.
As for protein drinks, that's a very personal choice. Personally I don't like Isopure drinks. They coat my tongue and mouth in an unpleasant way. But many other people really enjoy them and find their favorite flavors quickly. It's trial and error until you find one that you like; or at least one that you don't hate.

There are often sample packs of powdered protein drinks that you can purchase to get a taste it before buying a big container. I've been fortunate enough to find a Vitamin/Health food store that will allow me to return something new within a week if I don't like it to exchange for something else.
The things you need for pre and post op seem daunting and expensive. But if you take into consideration the money you spend on junk food that you shouldn't be eating, it more than evens things out. At least that's been my experience.