Hello Sr.
I'm Jorge from Argentina, a responsible person who have wide experience working with Web Data Extraction (Scraping) projects.
I offer you to build a scraper using WinAutomation tool.
You will receive an Standalone EXE file to run yourelf there, in your computer machine with Windows 7. Firstly, you only have to install the basic package library for WinAutomation and do one setting in your Internet Explorer browser and no more, you will run the scraper there.
Regarding the Proxies, I have Private proxies....I pay for them so I sugest you to buy a package of 5 proxies to work with this scraper, to be sure than those proxies works with no problem. I will add the features to work with the proxies you have there or will buy.
Several projects done succesfully at the moment, with different websites challenges (captcha codes, javascript, ajax, flash, use of Proxies). Also, with a wide variety of amount of data collected. Since few records to millions.
Please, I'm interested to help you on this specific challenge you have in mind, may we could discuss further and agree the workflow to receive the data you are looking for. Also, I'm able to talk about the price for the job completed.
Finally, I'll invite you to visit my Portfolio, here, to know me more in deep and see what people says about my jobs.
Have a nice day.
Regards.
Jorge.
P.S.: I will not accept any previous award, before to discuss with you all the details