Digital BW, The Print

This goes back a few days to an exchange of messages that culminated
on December 8 with message 81984. My message and Roy's response are
there. Since then I have followed Roy's suggestion and everything has
worked fine. BUT prior to that message I was experimenting with one
image and managed to CONVERT a GG 2.2 profile to Dot Gain 20. I'm not
sure of the actual sequence. My color preferences were set to either
2.2 or DG 20, and I either convert at the point of getting a mismatch
message or I converted using edit>convert. I may even have done this
first one way and then the other. So the numbers have been changed,
and the image looks bad on the screen and prints the way it looks.

It is a very layered workfile with complicated selections/masks. I
have the original, unconverted scan file. I could recover everything
in theory by dragging and pin registering each layer from the workfile
to the scan file. BUT the saved layered workfile has been cropped, so
the above process will not work.

I'm sure there is a straight forward way to convert back to the
original numbers (so that the scan and workfiles have the same
numbers), but I do  not know how to do it, and I do not want to make
matters worse. Any suggestions?