I need for someone to desgin all the entries for my website porfolio

HI, I have a website with a portfolio page similar to this [login to view URL] . I will provide a list of 70 items. You need to create a main post picture from the reference and then 5 images per post which will be screen shot of the software or app and put it into a phone or computer. So for example; If we are showing a website. the main image of the post will be an image from the website and then the 5 images on click will be the website pages in a computer outline. to show case portfolio. I will upload myself. You just need to design all 70 portfolio items. I need the lowest possible cost and time frame of 1 month maximum.