Hello all! I am not a Sims modder myself but rather a content creator with an outlandish idea that I've been struggling to bring to life. First and foremost, this is not a request! I simply want to pick the brains of people who know what they're doing in this space. That being said, please let me know if this is posted in the wrong place or needs to be removed altogether. Thank you!

My idea is exactly as the title says: I want to play the game as a horse. I just want to play the game as normal (get a job, cook, sleep, hang with other sims), except my sim is visually a normal horse standing upright on all 4 legs. My original idea was to swap the in-game model of the Sim with a model of the in-game horses, but I've since learned that is likely the most complicated method to achieve what I want. Below are some other ideas I've investigated, but I'd love to know if there are easier methods to achieve what I'm after or if there are other places I should look.

A few notes: I do not need the horse to be animated. If I tell the horse to make a grilled cheese, the horse can remain stone still the entire time. I do not need it to move it's legs/head etc as if the horse were actually making the grill cheese. I also do not need the horse to wear clothes or change visually in any way throughout the gameplay, though I would like the sim portrait to be of the horse.

One idea was to make a "shirt" that is actually a model of a horse that the sim would wear like normal clothing, except the model wouldn't move/be weighted as a regular shirt. And then make the sim itself invisible somehow.

Another idea was to trick the game into thinking a horse is a sim, either by assigning normal Sim controls to one of the horses, or by somehow recategorizing the horse as a regular sim. I know there are mods like Playable Pets but those seem to only allow minimal control over the horse. I want full regular Sim options.

I'm completely open to any other suggestions that might achieve this goal. The whole goal of this is just for humor! This would be streamed live on my Twitch channel/Youtube so I'm not after anything NSFW/beastiality related.