I've often wondered if this would work:
For a non-copy protected disk....
Load UAE and mount the IPF image as df1: and a blank adf as df2:
Put X-Copy image in df0: and boot.
Then in X-Copy set doscopy mode and df1: (source) to df2: (destination)
Certainly copy protected stuff won't work... But for reasonably standardized disks, like Monkey Island (manual protection, not disk protection)... Maybe?

(And if you have a Catweasel mounted as a trackdisk, could you then nibble copy the IPF to a real floppy?)
NOTE: I've never tried any of this. It's just an idea I've had stirring in my mind. If your build of UAE spontaneously combusts and consumes your PC, it's not my fault. ;-)