Grace, I'm confused with your 1st post then. What about KN? My understanding was you use KN for practice rides and possible showing, but wants something else for trail riding (and alike).
If you want a used leather one you can look into (again) KN, M Toulouse, Stubben, Thornhill (that's what I have, but it's for wider horses), Kieffer.
As for type of saddle, personally I'd still say go with 2 separate: dressage for dressage, CC for jumping, if you are somewhat serious about either of them. A/P is great for trail riding, but I don't think it's really comfortable specifically for either discipline.