Convert a Template to a Website

Hi. I am Tad. I am a front end developer, but I don't have much knowledge of GIT. I am working on a website and need help with: [login to view URL] I need to create two of these horizontal packery layouts. One layout will be used on a homepage. The homepage will use this layout to display images. Once the images are clicked, they simply link to separate pages. The other layout will be used on a filterable portfolio page. When one of these portfolio images is clicked, a gallery slideshow should pop up, instead of taking the user to an interior portfolio page. Does this make sense? I need a developer to help me build this, while showing me how to install and use isotope. I am asking that you work WITH me as I want to understand how to install git applications in the future. It's just very confusing to me. I am working with live Wordress websites, so how do I user bower or something to install a package? It just doesn't make sense. I need to be able to replicate how to do this on other projects so this job is 50% education and 50% implementation. Again, I am running a live Wordpress install so I can get you SFTP access along with backend Wordpress logins. I need to knock this out today. We can use Teamviewer and Skype for communication. I've already built most of the website, we just need to incorporate this layout style on these two pages. I'll upload two photos of the horizontal "packery layout" mockups for the homepage and portfolio page. I'll also give you a link to the live site we will be working on. homepage: [login to view URL]