Velious faction queries

[Polixa]

Getting Thurgadin faction means you get to do the shawl and ring quests, and I am wondering if there are any nice quests available if you go with Kael faction instead?

Second question, I have always gone with Thurg faction on every character, and dragon faction came along with it.....can I become Ally at Kael and still retain good faction with either Skyshrine or Thurgadin?