Downloadable for tier 2 members and above as early access.
Requires Ver.R and FBS, uses FBS ELA, you no longer need to install texture packs separately since few months ago due to FMM updates.

https://drive.google.com/file/d/1T8ssvfnZwHutSBV9G35LtY60KMwA52dL/view?usp=drive_link

Ver.R Dark SteelHeart, a bit of a different approach this time, FBS parts enable is mostly not toggleable due to skin indentation, instead, exposed NSFW version is a separate addon in FMM. You may however toggle the wing parts if it is clipping when you are trying to pose your character, otherwise, parts toggle is generally disabled (unless you're forcing it with another mod). Activate the set using FBS ELA, make sure you have Chatacabra Alpha layered equipped.