Broken caravan mover

JAL

Does anyone no were I could get spares for my ego mover.It has broken the drive sprocket which moves the unit onto the van wheel,ideally a replacement part is what I want but if need be a complete new unit for one side only I have been in touch with purple line who say they have no spares until at least mid August ??? Thanks for any advice 

eurortraveller

Google says try Homestead Caravans