TUTORIAL: How to write in Elvish. This is the most detailed and thorough I've seen. Also, check out a lovely book called "The Languages of Tolkien's Middle Earth". It explains elvish (Sindarian and Quenya), Dwarvish, and others. Written by Ruth S.
Runes and the English letter values assigned to them by Tolkien, used in several of his original illustrations and designs for The Hobbit. << My friend taught me this alphabet a bit. I was fun to write to each other!
In the books Frodo went on the journey to destroy the ring 17 years after the party, but in the movies those 17 years were just a few weeks. If Aragorn was 87 in LotR movie he must have been 27 during The Hobbit movies.