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?