Convert our existing site into Wordpress Site

We would like to convert our existing site into Wordpress for SEO and ease of adding content.? Site is simple brochure like site.? There is only on form in contact us page.? There are approximately 75 html pages to the site.? We would like to pretty much to maintain the same design, links and structure of the current site except we have an alternative header image that we have used on the the other site that we would like to replace with.? We will provide that image. We would also like to maintain our custome title, meta tags and URLs if possible so that we don't lose any of our current SEO work that has been done so far.? So please recommend any SEO plug-ins or recommend appropriate theme which allows. Important skill set we are looking for is if you have designed themes for corporate site in wordpress with focus on SEO marketing. Please let us know your bid, how long would it take and what is your specific Wordpress themes and SEO expertis. (1) What is your expertise in designing/customizing Wordpress themes? (2) Do you understand SEO aspects of Wordpress so that we can keep our custom title, meta tags and URLS?