Hello All, we've recently bought an immaculate 1 owner 1993 Wren which intend to keep in good condition whilst we use it. I've noticed the lower half of the external door in stiff & I've tried squirting wd40 & oil inbetween the plastic & aluminum elements of the hinge to no avail! So, any ideas on how to lubricate or where to get second hand hinges. I've contacted a number on caravan breakers & no luck.