SEO for specialty website to Increase sales

We would like to increase targeted traffic to a website for a specialty medical product. Our websites are selling sites, so the traffic we are looking for should be buyers! Short term, we envision a coder as a partner who will build durable quality backlinks, do other offpage SEO, onpage SEO, web 2.0/social marketing, etc. and review site design, for one specific website. For this first short term project we will set a traffic goal and a sales goal, all to be achieved within one month. As a small company, our reputation is a critical asset, and we will not accept black hat techniques. In a followup project that will be posted here immediately after completion of the first project above, we expect the coder to help to restructure our sites, add blogs where necessary and implement measures to further improve site traffic and conversions. We realize that this will not happen overnight, but we expect to see first results in the form of sales quickly. It is clear that this second followup project will develop into a longer term relationship.