Brain swap idea

Possible outline for a story?

Someone sent to pick up brain of an anthro horse girl, in the news the horse is having her brain removed after suffering from a condition that makes her crave brains and have low intelligence, at the same time experiments with a cetecean brain are happening nearby, find the brain at the location with a collapsible rifle, hook up brain to a thought translator to find it's the wrong brain, the horse brain got transplanted into the cetecean body.