After all these years, still no mod for adding online horses without replacing?

[TheAmber1ance 0]

I love the Gypsy Cob (among polite company nowadays known as the Irish/Romani Cob/Vanner).
However, to be able to have one in story mode, I must choose to replace a horse in-game. Not the hugest deal, I've never been a huge fan of the Suffolk Punch, so whatever, I guess. However, I've seen mods that add the online guns and outfits, etc., with no problem? I've seen mods that change the horses spawn locations, their stats, etc... but no added horses? Really?
I'm not beyond attempting to try adding them myself, but can it really not be done?

[goldenplaysterraria 5]

We can't edit the game scripts at this moment in time. If the horse isn't in the scripts, your save will be corrupted upon saving the horse as your own. It's as simple as that

Edited December 3 by goldenplaysterraria

[TheAmber1ance 0]

The horses in SUHM are added in? I mean, they're still horses that were lurking in the files, but they would crash the game if you stabled them, and they don't with that mod. Does that mean there's hope, or no?