Isotope script gallery modification

I bought this theme: [login to view URL] live demo: [login to view URL] I need somebody to put together the isotope script ([login to view URL]) to change my gallery from my website [login to view URL] . - I want to keep the look and feel of my current design - I want that when somebody click on a photo to open inside the grid and the photos to rearrange like here [login to view URL] Also I want the photo to open in a bigger resolution. Another sample here: [login to view URL] - I want to keep the Filtering by category that currently have on the gallery - I want to have infinite scroll (like here for [login to view URL]) for all the categories in filtering - Once the photo opens inside the grid I want to have the Description, title and Social links, the Category of that photo. When you click on that Category I want to see all the photos from that category displayed. -At the moment to add photos to the current category I need to add every photo in to single portfolio item and that is such a pain. So I want to use the WordPress capability to add multiple photos to this gallery - The current design allows to have in that gallery videos , photos or link to a set of photos. I want to keep it that way in my current design (see the demo for details: [login to view URL]) Thank you very much