Scraping Competitors Site or Google Shopping

So I would like to scrape a competitors site (or Google Shopping) for product descriptions, photos and meta information based on a spreadsheet I have of model numbers.

Photo's are not mandatory

I would like the data then exported out to CSV or Excel

Is there a tool that would do this? Hopefully not expensive

Is custom scraping scripts the only way?

try web content extractory, maybe it will suit your needs.