Binary hacking is based entirely around data pointing to other data. In decomp, there are no pointers because nothing's been compiled you. You can probably copy over XSE scripts with little hassle, but I don't think you can do much else. Essentially, if you make something outside of the rom, then put it in (XSE scripts, pictures, etc), then you can probably do the same in decomp. If you put something directly into the rom (data entry, mostly), then you will probably have to redo that.
There's no way to take a binary hack and make it decomp and keep working from there, if that's what you were asking. Hope this helps!