Hi,
I write data scrapers as part of my day job. I usually quote 24 hours for such tasks, but normally I can write the necessary code within a few hours, provided the page to be scraped doesn't rely too heavily on javascript.
The quote I've given here is just a nominal figure based on previous similar projects I've completed - could you give me a link to the actual site to be scraped? I'd be able to get a better idea once I've seen the site.
If you want the source code, I can get this within a few hours I imagine. I'd write the code in either php or perl. If you wanted just the data rather than the code, then it may take longer (because of the amount of time required to actually scrape the data).
Best wishes,
John