Project Magento Product input 500 items (VER11)

We are looking for highly experienced Magento programmer / Data entry person. That knows Magento!!! So here is what we am looking to do: 1. Product input 500 items into Magento Computer related Online store. 2. Magento supplied data for input will be limited to the following: Cost of product, Selling prices, and a web link to see the product and gather other information needed from various websites for input i.e. weight, UPC codes (GTIN-12), pictures, descriptions ect. 3. Products will be input manually in Magento for the first 100 items then continue manually or via the import and export feature in Magento. 4. After 250 products the remaining products will be completed only via the import / export method. 5. We will do the import and export after 250 products have been completed by yourself. You will need to supply the completed CSV file. After we import you will need to verify manually all items are showing correctly and make any necessary corrections. 6. An individual Magento programmer / Data entry person is preferred.(NO COMPANYS) 7. Person must be available more than 4 hrs a day! 8. Our every question / email must be answered within 1Hr during working hrs. We are hopeful we can find that 1 special Magento programmer / Data entry person here at GAF! We would like to hire for a permanent position in our company for ongoing work. We will also be adding in excess of 5000 products. Although this project is only for input of 500 products. Payment will be made as follows: 20% after the first 50 products are complete 50% after 250 products 75% after400 products final payment after 500 products and project is complete.