OPENCART - Want Massive amount of products Imported through CSV

We have a massive list of products that would take completely too long to do data entry. We require a slick programmer that can possibly import these products in a different way.

Categories of these products add:

Model number (Needs to be auto generated, but only for different descriptions. if product has similar description, and then should have same model number.

SKU (Each product size has a different SKU number for internal use)

List Price (if buying 1-5)

List Price (if buying 6+)

SEO Keywords (for customized title) **please note there are duplications.

SEO keywords don't allow dups. You will need to fix

Material (dropdown)

Color (Some products allow you to select color)

Category (Or subcategory)

Picture URL (Picture URL on our server)

**Please note that products with different size options change the pricing for that model number, but has a different sku)

Skills required are Database Administration, PHP, MySQL, Script Install, Software Architecture