Umm I think you are a little confused with rep, it goes from neutral to friendly to honored to revered to exalted.
For rep quests, there is the cloth donation repeatable. No you don't need exalted with SW for HORSE mounts if you are human just like if you are Dwarf you don't need exalted with IF for RAMS and etc. If you are trying to ride a different faction's mount that is not your native, i.e.- human trying to ride a ram, you will need exalted with the faction that will give you the mount.
Edited, Nov 28th 2006 12:38am by ElementHuman