Thanks Bruce and mulefool, for the great advice, the reason I'm only replacing one was because thats all she wanted, but you brought a great point to my attention and I'm gonna talk to her about both of them. The saddle itself looks pretty good, not old at all, and the leather is wearing out at the point where its rubbing against the rigging dee. The other stirrup leather (off side) looks pretty good but I can see where it's rubbing too, so sooner or later it will have to go.
Thanks again for your help.
Misty