You could try the multi-socket hack used for debugging large chips (I
think this was invented for dealing with the 68000 64-pin .9inch DIP.)
You pile up sockets in each other until it's high enough off the board
to attach the ZIF socket.  It could also be done with WW socket:

        *BIG BAD**
        **ZIFSOCK*
           |  |
        C  WWSK
         O |  | R
        MP |  | R
   -------Board----

BillW