Good afternoon everyone! I have a Citroen Relay that i am slowly converting into a campervan, my next project will be to fit the two rear door windows, i'm looking at the polyplastic opening version available from Magnum Motorhomes and was wondering prior to contacting them if anyone knows where i can source the plastic internal (R75 corner) radius pieces from? i've googled the part number listed on the fitting instructions (downloaded from the magnum site) but nothing comes up on the google search, looks like i may have to make my own infills?