@CarDude if you can take some pictures and measurements I would be more than willing to try. Is there a bolt somewhere in the center of the seat frame to attach? Or a spot under the dash to do a single? I would like to make it where the person doesn't need to drill holes, but not sure if that is possible. Let me know. I would love to do the earlier years.
How about this it could attach with one or both with the thickness of the metal that you're using
And have the holder about right here