I should be able to easily get a Naive Wailmer (and then have those moves tutored for you). The issue would be the HP Grass part, I don't have any suitable parents that would work atm, and it would take a while to get them. I have never tried a HP set yet either :/
I could aim for flawless IVs, since I already have a large array of parents. I have used this for all of my breeds thus-far. Are you set on the HP Grass, or is there some wiggle room? Moves are all np.