I'll tell you how to mirror a model and animations using granny export, but after I see it :) left-handed:) black guards.
But regarding the method, I'll be glad to hear it.
Added 2 minutes later
and for the deer port :)
I will upload it in two versions, for users and a version with just resources, for people who want to use these models in their mods.
Maybe later there will be deer and a mermaid, maybe not.
Maybe I will work on another project next. I seem to have agreed with a Pole to jointly finish a mod with nagas. So that there would be alternative buildings and you could build either a naga city or an elf city.