Get in touch with ProTec but be sure that you tell them you have a PuckL which means the door is at the back. Also say if your PuckL has a flush gas box (two windowed front) or a projecting gas box (Single windowed front). Finally do you have a Fiamma or similar, pull out awning/shade fitted?
There are generic covers that'll fit but the Puck L door position is unique.
Randa