Would anyone know of an English sefer on Kibbud Av v'Eim which Has a mix of Halacha and Mussar ?
ArtScroll has a book titled "The Fifth Commandment" that sounds like it might be what you're looking for.
I recommend two seforim in particular:
Yalkut Yosef, Kibbud Av Va'em by Rabbi Yitzchak Yosef, son of Maran Hagaon R. Ovadia Yosef, (Etbonan Publisher, 2006) and
Honoring Parents in Halachah by Rabbi Tzuriel Taaseh (Targum Press, 2004).
Both of them has a collection of midrashim and mussar sayings from chazal.
The book My Father, My Mother and Me - Sons and daughters tell of their devotion, challenges, and successes in honoring their parents by Yehudis Samet (Artscroll), is really great!