Judaica Plaza actually recommended it, but they said it's been out of print for a while. You know where they sell them?
מלכים is available @Judiaca Plaza. Don’t know about the others.
Incidentally, if you’re setting out to learn nach consider getting the newly released אמת ליעקב on nach. Has an introduction about learning nach, as well as a fascinating נספח about Mendelssohns biur.