So it turns out I failed to say what I meant... I meant to ask for help with some story specific visual assets (inside of a house, swings, another character, a few extra animation, etc.). I have seen ansimuz's other sunnyland assets, but they do not look like they would match easily together (largely because they use different color ranges). I could recolor them, but I am concerned about time.
That said the famitracker keyword was a great tip! Thank you very much. If I have time I will look that over and possibly change up my song list.