Add a feature to a ready website template (JQuery)

I have a website template that I bought and is very much ready for what I want, except for a 2 features that I would like to add 2 features to a specific page. Here is the example of the template that I bought: [login to view URL] projects/[login to view URL] In that section of the template (Projects) when you click on a image/project it open the image and has a description on the right side. On that page, I would like the following new features: 1) Click on the image for a high resolution zoom, similar to the effect that can be seen on the page image gallery ([login to view URL]) -- (Attachement Zoom2) 2) Add other thumbnails to each project and when you click on it would also zoom to a high resolution image, so each project would have multiple images but it would show just the one image on the main project page. (Attachment "Multiple Images") I have attached a graphical explanation about the 2 features, please let me know if you have any doubts. Those are the only new features that the website needs, which was developed in JQuery and I would that the new features also be developed on these pages. Please, give the best price and time estimative for these developments. I want a fixed price for the whole project.