Hello Back,
I think I do have those parts .............. If you will go to
www.lakenormansailing.com scroll down to th J30 parts and look at photo #18 & 19. Ther are two sets of tracks. I do have the two long ones with the Cars. The cars are in good shape. The Bolts and washers and Acorn caps are intact.
Ted,
704 965 6502