Hi! I have huge experience in writing Python web-scraping scripts. I worked for consumer-tests site and wrote Python/xpath scripts for scraping 500+ sites, so definitely I'm able to work on your project.
I have strong knowledge in Python, HTML/CSS/JS/XML/XPath,
also familiar with SAX processing (but may be we could use better and more flexible alternative), I have experience in crawling very weird sites, even those with Flash only content or with ASP/doPostBack/cookies protection.
We could use Scrapy or custom system in your project, work with XML/Xpath or just BeautifulSoup parsing, but not limiting to them - I'm totally open for new technologies :)
Previously I used SVN, but I have also some experience in git, so that part will be easy :)
I'm used to work with per site payments, and you are welcome to make honest offer - like fair equal payments for hard/very easy sites :)