2 x Single train tickets to Edinburgh, valid over period of Fringe festival! ?

Unwanted tickets purchased due to a missed train after a week away in edinburgh, looking to recoup a little of the costs of having to purchase tickets on the day! (RRP £242!!) These were purchased as a return as the price was very similar, however only the single to kings cross was used. The two tickets are valid for a single journey to edinburgh (waverly), and are valid up to and including the 26th of August 2012. Great for someone who wants to pop up to see the fringe, or return home after the olympics more cheaply than the online single prices. Taking any and all offers under consideration. But roughly £50 per ticket, or £100 for both would be great. (The tickets are £120 on the day, £85 if purchased in advance for this week, and £65 if purchased in advance over the next month), so this could be a decent deal. Otherwise accepting the highest offer. Based in North London, and willing to meet in central if necessary to get the tickets to you. Otherwise will happily post them to you. Cheers!