The guide in your photo appears to match our 23-082, but I don't know what length track you need. The sizes we carry are the 48" long 23-244, 60" 23-245, 72" 23-246, and 96" 23-247. Look these over and let me know if you had any questions.
A home owner from Carlsbad, CA says:
May 1, 2021
Thank you for finding them. I only need the tracks.