B2B Steel Project

I am in need of a Business 2 Business SEO website . My B2B is about supplying / brokering / selling finished and semi-finished steel products. As a broker i have many worldwide contacts with manufactures and suppliers and my aim is to connect businesses with the best possible price for their steel needs. At times my company may play an intermediary role in procuring steel and other times we simply connect buyer with seller and make a commission. The site is to be uploaded or designed from my Site Build It! platform so please let me know if you have experience working with that platform. It's not a must but it would help. I also would appreciate some help with generating keywords as Site Build It! uses the Word Tracker software to help choose and analyze keywords. Right now i have about 75 words but i believe i should have at least 300-400 that i can use to build articles around to generate organic traffic. I want a site to clearly showcase that we sell steel to small, medium and large companies in need of steel. We also at times arrange transport and freight depending on the customers needs. I would like my site to be a lead generator with call to action content. A best of practices in terms of having an appealing look and structure is what i am looking for. A smooth looking header and home page is a must. I don't need anything to fancy like flash. Maybe 4-5 sliding pictures with some text on my home page displaying steel industry pics. At the top of my page 4-5 links of various topics pertaining to the company and industry. On the left will be my 15 products which will need short SEO descriptive rewrites. All my product pages will have a contact and Request For Quote form at the bottom. Translation module is needed. I already have most of the content i want to add to the site but a lot of it will need rewrites. Professional input on rewrites and ideas are expected due to your experience with B2B sites. Some of my rewrites will need to be compelling with proper English business grammar so if this is not one of your strong points let me know and i will hire proper writers for that part of the project. I have included a file of the rough copy of content i want for my site. It includes some competitor sites that have certain qualities and content i would like to have on my site. Let me know what approach you would take and why your style is what i am looking for. Please provide some sample sites for viewing. Best Regards, Vic