Hello,
I can write this scraper for you. I can provide to you a gui where you can type in the keyword and click a button and the results will be in an Excel file. Feel free to chat me up here on Freelancer, I am available from 8am until 11pm daily, I leave my browser open. I would write this using Java so the program can be run across Windows and Mac computers.
Please consider me when making your hiring decision,
Andrew