Wordpress - Full Site (Catalogue)

We would like a Content Manageable WordPress Site to operate as an Online Catalogue. The pages will include: Home, About Us, Products, Projects, News, Contact Us. This will be designed from scratch, not a modified template. Below are some examples of the websites: [login to view URL] This site has a good example of how we would like the product pages to look. Photo(s), brief description, and PDF Datasheet download. [login to view URL] A good example of Product navigation, from Category > Products list > Product page [login to view URL] This website gives an idea of the possible theme we would like to use. Minimalist and clean. Below is an example of a Mock-up front page layout [login to view URL] There will be 500+ Products, grouped into 4 major categories. There will be families of products in each category – rather than 1 page per product. Below are examples of our product PDF catalogues. (the first 3 catalogues are our main products) Architectural Lighting Works: [login to view URL] Ad Lighting – Outdoor: [login to view URL] Add Lighting Product Guide 2013: [login to view URL] Radiant Lighting: [login to view URL] Eulum Lighting: [login to view URL] I have been involved with graphic design of our branding for many years and would like to be involved in the appearance of the site. We are hoping to have the site designed and ready for product details to be loaded – which we can either do ourselves or discuss Outsourcing. Essentially, the site will need to be completed to the stage where it's ready for products to be entered. Please feel free to contact me if you require any further details to put together a quotation and estimated timeline.