Apparently theres no changes to the kit from the old supplier to this new one. I would assume the same quality. Nice to know I can get spares if I prang it!
Nick when I bought my kit in Novermber 2016 I was told the door skins were multiple panels bonded around the metal support bar that runs up around the upper edge of the glass / Perspex area. Sounds like they aren’t supplying any metalwork in the new kit at all so it must be the inner upper part of the inside of the door skin.