The deck I took to the Lure this year was a secrecy deck with Glorfindel (obviously), Eleanor & Theodred. You start at 20 thread immediately, so you need some manner of luck T1, but you should manage. Don't have access to it atm, but from the top of my head:
Timely Aid x3
Dunedain Ranger x3
Celduin Traveler x3
O Elbereth! x3
Galadrim's Greeting x3
Elrond's Counsil x3
Gandalf x3 (2x core + 1x v2)
- Asfaloth x2
- Light of Valinor x2
- the obvious enhancements x?
edit: I also used Stargazers (x2) and Taking Initiative (x3). Not the most competitive option, but you can trigger it quite often.
The deck performs well along with the Hobbit deck, in which case you can play Wandering Took (for flavor). For soloing purposes it's not ideal at all. Once you trigger the "O Elbereth!" it's good to drop the v2 Gandalf if you have it. I don't really like the Heroes used, but then again: Pippin seems to do very little in your current build. Eleanor at least seems to guard against some doomed-based cards (the conditional ones).
After reading your concept deck, I'll make some changes as the Runes were in another deck so I kinda forgot adding them. Same with the Sneak Attacks and the event-fetching Elf. Your deck seems solid. I agree with dropping the 'free' scouts (given I play Taking Initiative). I'll test it and let you guys know.
* Is Leaf brooch really worth it? It seemed like an bad card to me, even if you exploit it. It obviously works well with the rebound events, allowing you to cherrypick the best target, true. But I'd rather focus on keeping under 20.
* What's the use of "Out of the Wild"? Sure, you can remove threats, but having to reshuffle the deck really makes it unworthy of a card slot (but I must be missing something). I'd only use it in the wounded eagle quest.