I have a 83 Range Rover that came with a dealer installed AC unit made by Diavia Frigette of Bologna. My understanding is this was a fairly standard dealer add on before LR offered AC as an option. I have a damaged vents/louvre rail but have had no luck locating a source or anyone even familiar with these units. Being in the USA adds to the challenge as the trucks were not officially imported into the USA until 1987, so really no salvage options. Any suggestions/advise greatly appreciated.