I was half a block ahead of the city dump truck on salvage day this morning. Look what I found:

Too small for me at 19" for the seat tube, but it's a nice, light touring frame.
and this:

Not as light as the Univega mixte frame, but still...
I also got the front wheel of the Peugeot and the back wheel of the other bike.
Apparently, I did manage to attach the thumbnail pic of the Backroads...