my 65 has the double hook spring rod on the left side. Lids are interchangable....but there will be a bracket on the right side for the right side slider rod. a bracket on the left side to catch the lower hook. Both brackets on either side hand just below the trunk drip channle, ~ 5 " up the lowest point of the lid.
If using the earlier lid, a hole is needed in the undeside of the trunk lid for the top hook. Shape is a little different too. I would think the best best would be to make a small bracket with a hole and mount it to the underside. Not stock looking, but easier to positon.