I'd love to credit the texture authors for the original:
jumping, western and english tack and the leggings I reused for the riding tack

 but I'm afraid I can't find their source.
The originals were/are available on the Nova Skin Gallery.
Modifications have been made to all of them by my own hand.

The Harness was inspired by Simply Horses' wagon harness.

Racing tack inspiration provided by cherrybomb.com

Blankets designed and provided by Kiwhinny

Coding for the Mod provided by sekelsta