I tried running WP for SCO under iBCS 10-15 years ago. I couldn't get it to work. Don't remember all the details but it seemed they cheated with some of the video routines and I mostly got a corrupted screen. I didn't spend a lot of time on it, though, and I very well might have just not hit on the right incantations.
Word Perfect was available for UNIX as well. The SCO binaries might run with iBCS. I don't know if that would provide a significantly different experience than running the DOS version in dosemu though.