Search replace and update JSON files - Powershell - UI

PROJECT IN SHORT: * Create tool to search in multiple directories and find the manifest in those folders. The script should find and replace multiple lines of text, if lines won't exist new lines of code must be added, image files must be copied to some folder too. Full requirements are attached to the project. The script should have a UI and simple management. NOTE: Must be completed in a few days! Software must run on Windows 8 Without a problem. ONLY LOOKING FOR USERS WITH HIGH RECOMMENDATIONS AND A REPUTATION ON CREATING SOFTWARE. I ALSO LIKE TO SEE A DEMO FOR TESTING BEFORE THE MILESTONES WILL BE RELEASED.