Hello There,
i go through with your all requirement and understand it very well, i make sure i will give you best result, I've experience with scrap websites,
i will also build some functionality for reports and logs when proxies failing, i will determine the best way to find the products taking into consideration the unique way each site represents it's products.
I've 5+ years of experience in evlopment with PHP, HTML, HTML5, Javascript, Web Scraping, Software Architecture, web design etc.
I make sure task will be finished within 2 weeks, i look forward to your response, Thank you.
Regards,
Arun.