I'm looking to buy a Dura Ace seat post? Specifically, I'm looking for a 27.2mm post that is 270mm long ... model SP-7410. Some come up on eBay, and I've been keeping my eyes open, but nothing has been quite right lately ... either too short, beat-up, or who knows what. I'm getting tired of waiting, especially since I know there must be some of these posts out there.

If anyone has one of these to sell or has an idea of where I might be able to get one of these posts, please let me know. It's the last piece I need to finish off my retro fixed gear project.

Thanks!