Engaging copywriting for a new upgraded website

Num. of words: 40000-50000
Website url: http://www.dsmstainlessproducts.co.uk/dsm-new/
Information for the blog/website: We are a stainless steel fabricator making bespoke worktops and sinks for commercial and domestic markets.
Num. of web pages: 25-30
Tone: Neutral
Outline & Structure: We are looking for a skilled and competent Copywriter to produce interesting and engaging copy for our new website. This will involve drafting content for around 30 product pages, plus additional content for further main site pages.

Our old website can be found here:
http://www.dsmstainlessproducts.co.uk/

Our new website can be found here:
http://www.dsmstainlessproducts.co.uk/dsm-new/

A critical element for this work will be to not only gain a good understanding of our products and markets, but being able to produce easily differentiated copy for products that share many similar attributes, and service similar markets, such that each product page is unique. We envisage this project may benefit from the freelancer
making one or more visits to our site, or even working on site for the duration (we have a separate office that can be used and will supply all materials necessary [along with copious amounts of coffee]) - though not essential this is an option available.

Each product page will require the main introductory section (circa 250 words), a section for each applicable industry (circa 150-170 words each - average 4 x industries per product), and section for each key product attribute (circa 150-170 words each) between 4-6 each per product.

See here for an example product page:

http://www.dsmstainlessproducts.co.uk/dsm-new/worktops/
Extra notes: Initially we would look for the appointed Copywriter to complete 2-3 pages, paid for separately, to establish if they are a good fit for the project, before awarding the rest of the work. Therefore in any proposal, please include a cost for 3 product pages AND a cost for the whole project.