Following this thread,
http://www.ukclimbing.com/forums/t.php?t=596069
I decide to abseil down Dream/Liberator today.
I managed to extract seven in situ nuts. Two from the top pitch, and five from the vertical crack beneath the crux overhang. There was one I couldn’t shift, and the remains of a peg which wouldn’t shift either. (If you haven’t done it, the crack is about two feet long!)
I reckon you should now be able to get some good wires in, so it should be a slightly less traumatic proposition.
Then I went home and had a beer.