Fresh Strawberry Juice?
I assume you're following a strict recipe.
I'd suggest practicing a bit beforehand; you may not need a full 16 cups of juice. You may also find it difficult to strain as the pulp would make up quite a bit of the bulk...
Maybe just blend and mix with water and add sweetener as required. You could play around with the consistency (more/less berry/water)
As Querencia mentions, Jumex has a canned strawberry nectar - play around with that as well, maybe a mix of fresh and canned?
If you're gonna pick up a can of jumex, ya might wanna get a coupla flavors...I'm thinking strawberry/banana margaritas or strawberry/pinapple or strawberry/pineapple/coconut
well, you get the idear.