Ulysee sliding door cable snapped mk2 jtd 2003

[Redfx]

Im trying to source a replacement motor and cable for my ulysee, as the closing cable on the near side electric sliding door has snapped and despite trying to crip it back on to the door fitting it won't fit through the grommet of the door. Ive searched this forum and trading partners as well as the web and i can only find breakers parts. Because of the wear and tear on the cables i was hoping to replace with a new part (motor and cable as its a complete unit) my local fiat dealer can get a new part but it will cost £560 plus VAT. Does anyone have a name of a supplier who may be able to help source a more realistic priced part. ?? Many thanks