I have a 2007 SuperGlide. My local dealer has a 2006 ElectraGlide Classic with 25,000 miles, looks to be in excellent condition, and he'll give me a one year warranty on it. He wants $12,600 for it, or my bike and $6,000 OTD. What do you think? Do the 2006 engines have any problems, and is that mileage something to be concerned with? Thanks!