If you have an HD floppy on the Amiga you can copy the disk image over using CrossDOS.
If you are restricted to a low density Amiga floppy drive then run WinUAE on the PC and use LHA to save the disk image out into two parts that will fit on a low density PC floppy. Use CrossDOS on the Amiga to read the floppy and LHA to put the two pieces back together.
