Yup, the '65 2% HTs used an aluminum extrusion for the upper door frames, with another one used at the leading edge of the quarter "glass". 1-piece 'glass dashes (no glovebox).
I show 11 10/15 HTs including the mule car, which was apparently destroyed and was the only HT not acid-dipped; the rest were dipped in varying amounts owing to the process at the time. When Chrysler brought the teams in to view & pick their 10/15 cars (photos exist), they picked among the ones there according to their Plymouth or Dodge deals. Seems that Landy's & Golden Commandos' cars were the lightest/most dipped, as there are pics of them being buckled at the door/quarter area. Weird history: Lee Smith's car was found with a sunroof opening cut into the roof! The dipping was not kind to the sheetmetal in the long run, and the cars used to sprout cancer and split seams...