My club finally set up our n scale reversing trolly and the ab track rails came off after only a few runs. Since it is out of warranty Bachmann won't replace the whole set. They don't sell individual ab track so is there someplace that we can get one, or does anyone have one to sell?  We tried to glue it but now it doesn't reverse. Any help would be appreciated. We would like to get it running for our January open house.