Integration of API (Search Property / Display Results / View Property) in Word Press

We have a small project that requires using an API to create a search bar, then display results and finally show the result in a detailed Page. The API document is attached. The API is basically connected to a database of Properties (Houses and Aparments listing). We need to use this API to search the database, display the results and then display one property in full details. Look at the website [login to view URL] This website is a WordPress. We have already installed a different API on this website. It does exactly these functions Search, Display Results and Display Detailed Property. We want to replace the previous API with the new API (as attached). All you need to do is changing the search, display result and view. The rest of it remains the same. We did the first API integration in 3 days. We expect that this job should take you no more than 2 to 3 days. We accept 1day of time for orientation, 2 days full programming, and 4 hours to allow for fixing the main bugs.