I don’t know a lot about the jQuery plugins your using, but if you want ACF values in your code somewhere then you need to put them there. I am assuming that there are “data-” attributes that you can add to some element that are used by one of these plugins.
If the image gallery plugin you mentioned is this one https://wordpress.org/plugins/jquery-masonry-image-gallery/ then I would start by looking at the documentation for that plugin if there are any filters that will let add these custom values.
