Check with Josh Anderson. He should have the parts from the Rangemaster factory.

I suspect you will need someone to custom make something for you.

Hello fellow Navioneers,

I am a new member. I fly and manage the maintenance for the owner on a 1970 H model Rangemaster. The cabin is equipped with rails/tracks for side curtains. Does anyone know where I could source curtains for the cabin? If not complete curtains, perhaps just the hardware that slides inside the tracks? Thanks for your assistance,

Rick Garner