Like i told you before if you want specific stuff you'll need to save-scum to get it. (Or hack the game.)
So yes you can eat sky sap to become vanae-morph, and then use another TF to get rid of specific vanae-morph parts, while keeping others. That's how i got demon-morph parts (as well as others), while not having horns.
Horns are the most annoyingly common result when you eat Lucifer you see.
![Roll eyes :rolleyes: :rolleyes:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
![Coffee :coffee: :coffee:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
It can take you a long time to customize your character precisely the way you want him/her/it/they to be.
But it's all part of the fun i'd say.
![Sneaky :sneaky: :sneaky:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)