This contract is not the most powerful IMO. It takes longer to set up the deck, but you get a bit of threat reduction and extra resources along the way (not counting card draw since that's just card cycling into your key pieces).
When building, the events cannot be sitting in your hand for long. You got to keep them rolling, again to find your key pieces. You also need to plan for next turn even more than usual, so the first few times with a council deck is a bit of a brain burn. I'm not even gonna attempt tips how to play, other than Galadriel needs money, but I still play steward on Gandalf.
Also, the number of events that you want to include in this type of deck compared to a regular deck is a lot smaller than you first imagine.
Maybe I'm thinking backwards, maybe you should embrace the card salad served, and just accept that the deck play differently every time.
Started tested a bit, but I'm also at a stage where I'm kind of giving up on this contract. Maybe Thurindir + gather information is the best option for this contract, but that's very quest dependent. Feedback wanted!