Web copy for product pages on a pet product website

I'm building a website selling pet products. We need 30 product descriptions writing for the website. I will provide a list of the products and you will need to find the items on the suppliers' websites and rewrite the product descriptions so that we are not adding duplicate content to the new website. The facts, ingredients, composition etc must stay exactly the same, it just needs wording differently. There are a lot of product descriptions to write so if you write well and wish to carry out further work with us, it will be available.
I'm ideally looking for someone with:

A knowledge of marketing
A knowledge of SEO
Extremely good use of English
Experience in the Pet Industry

It's extremely important that the product descriptions are accurate and well-written in good English with correct use of grammar.
The product descriptions need to be 120 - 150 words. They all need to be headed by a well-thought-out header that includes the brand and the name of the product as well as describe the item. Eg. "Brandname dried chicken wing dog treats". This needs to be followed by 3 - 5 bullet points that pick out the main features of the item. We then require the descriptive copy that will tell pet owners everything they need to know about that product. Finally, if the item is edible, we need a further section for ingredients and composition.

We need the product descriptions back, clearly identified on a word document. You will need to use your knowledge of SEO to ensure that the most beneficial keywords are used at least three times naturally throughout the copy.