Them back covers are almost imposable to find. I'm still working on mine. Here's the beast I'm talking about. http://www.stationwagonforums.com/forums/showthread.php?t=7097
If i can't find one i figure i'll rebuild the one i have, using rod door plastic and epoxy. Its just so much easier to replace as we get older .
Papa, Here's a nice 66 Fairlane wagon that just popped up on eBay. Thought you might want to have a look, maybe for inspiration: http://cgi.ebay.com/ebaymotors/Ford...8066233?pt=US_Cars_Trucks&hash=item4165a32a39