LOTR cosplay

Does anybody know where I can find tack similar to that used in the LOTR trilogy by the horsemen of Rohan? I want to cosplay as one of the Rohirrim and would love to include my horse Clipper in it seeing as he definitely has the build of an old war horse. Really I just need a saddle, I’m assuming they used Australian saddles in the film, and if finding a bridle and is too much of a challenge, I guess I could always just make accessories for the tack I own already. Just wondering if anybody had any tips or if they’ve done this before. Thanks so much! ^^