Scraping Data from one site to populate my volusion site

Hello, I need to find out how to go about populating my volusion website with products from another website. It will be titles, products, images, model number, description etc. I want the freelancer to copy pictures, text and prices from different sites and to enter information into my new site. The sites you will be scraping will be sites that I am buying from. I want you to have proof that you have done this kind of work before and I need to know how much is will cost for approx. 100, 500, and 1000 itmes. I will have many sites to do if this can be done for an affordable amount. Also, I would like to know if you can do data entry from a paper catalog and how much that costs.