Well, I have all the horses together, but I have to admit the kits were horrible! None of the heads really fit correctly, so I they have all been corrected using Liquid Green Stuff. I have to admit though that this stuff is super easy to use. I've added the rear strap with Cereal box, and used some bits to add some kit them. I'd like to give most, if not all the Lancers a sword, pistol, and Lance. This way I can use them with any combination of weapons allowed in the codex.
As for their Riders, well we can see one of those below.