Mac Script Creation for Ad Search Data scrapping

I am looking for a developer to create a local script for Mac that can review preconfigured searches on Wallapop.com and coches.net and save data from the ads found. The goal is not to create a complex platform or a web application, but a practical solution to preserve information from ads that may disappear quickly.
I will provide the search URLs already configured on each platform, with the filters and price sorting already applied. The tool should read an editable list of URLs, open each search and capture the first three results that appear. The expected volume is approximately 5 to 10 URLs from each platform.
For each ad, I would like to save the capture date, URL, title, price, year, mileage, location, ad text or description, and two or three main photos.
The output can be an Excel or CSV file, together with organized folders containing the downloaded images. The Excel file should include the local path to the saved images. The tool must allow me to choose the output folder; ideally, this folder could be synchronized with IONOS HiDrive.
The script should be executable manually or scheduled once or twice per week. I use Mac, so it would be useful if the script could be easily run through Hazel. Another simple macOS automation method would also be acceptable.
The tool should avoid basic duplicates. I do not need an advanced price history or a web dashboard. However, I would like a small execution or error log so I can know if a search has failed.
I am not looking for an aggressive solution, nor for techniques to bypass captchas, blocks, logins or clear website restrictions. The developer should indicate whether they see any technical limitations with Wallapop or coches.net.
Please provide a fixed price, estimated delivery time, installation method for Mac, and any possible maintenance needs if the websites change their structure.