Hello. I just purchased a ~2006-2010 Dahon Boardwalk D7 7 speed. I'm very happy with the purchase. However, as I suspected, even with the seatpost at the limit line, it is still too short. I was aware of the telescoping seat post that is available, and promptly started looking for somewhere to buy one.

• I attempted to contact Gaerlan custom cycles by email and phone but have received no response. http://www.gaerlan.com/dahon/misc.htm
• I saw a mention of ThorUSA having it, but it appears that the don't any longer.
• There is one on ebay, but it's over $100.
• No local shop has it.

So what do I do?