Link building/ exchange

Dear Sir/ Madam, We are looking for experienced link builders to provide a link exchanging service for our website which is soon to be launched. Preferably we are looking for links from websites with a page rank of 3 upwards with a subject relevant to recruitment and recruitment services, however other categories are welcomed. Please quote a price for each individual link and how many you can expect to get over the period of a month? Companies providing references for previous link exchange campaigns are more likely to be chosen, so please give as much detail as possible on what can be achieved. Note: Please quote for per link exchange, if the price varies on page rank please quote the difference in price for different page ranks. Kind regards, Cez.