Horse Trainer, Jones sells normal 5 speed horses (different colours) and 5 speed HHs (currently nightshades) for only 50 copper each
Miss Lucky Charm sells enchanted iron horse shoes, enchanted saddles, saddle bags, bridles, different bardings, enchanted grooming brushes, branding irons, halter ropes and speed runes for carts/wagons (check prices on the merchant as they vary according to enchant power)
Come visit next time you are in the area
The spreadsheet here will show the current stock of animals at my Swiftwood Market (pen 1-46) and East Swift Market (pen 47-96). Be aware those markets are located far between so double check the location of the animal you want!
Added the animal stock of this market (pens 47-96) to my sale spreadsheet - note it's shared with my other market (Swiftwood Market on west Novus - pens 1-46) so make sure to check pen number and location before heading out to buy I hope the sheet is pretty clear ....I dont want to confuse people too much