50 PR3+ Links Required

I need to get 50 PR3+ preferably one way or two way relevant links to our website. The links should ideally come from financially related sites in our own country which should be ALL English language sites. Links can come from relevant forums, directories, blogs and social bookmarking websites, but only those relevant to our site content (web development) and only one link per site and must all be of a PR3 and above! My Budget is $2.50 for every link secured! Please explain your approach in your response and turnaround time for project completion. We do not want to have to link back to the sites that link to us although if site is good we can place in our site directory pages. Please note we don't want to pay for directory memberships. Links should be permanent and not expire after 14-30 days. You will be required to provide a list of the pages that the links have been placed on so that we can track the effectiveness of the campaign. If we see an improvement on our search engine ranking for our key terms, then there's a potential of more work for our clients. I look forward to working with the winning bidder....