You know, just because you can equip the item doesn't mean you have to. There's nothing that forces the equipment onto your character when it goes into your inventory. Now leave what's left of the horse alone before it won't come out of the carpet.
Naiya | Mithra | Windurst | Rank 10 | 1st Lieutenant | Ragnarok
WAR: 75 MNK: 75 SAM: 66
RotZ: O | CoP: O | ToAU: O | Apoch Nigh: O
Naiyah | B.Elf | 85 Rogue | Stormscale
Doubleday | B.Elf | 85 Paladin | Stormscale