This is great from what I've read so far, but I figured you should know that you only partly-garbled the LOTR references used on page 41. The starting encounter descriptions use the "parody" name of Helob and reference imps, while the result descriptions use Shelob and reference orcs instead. It doesn't make it impossible to follow, but you may want to revise it for the future.
I really like what you've put together here, and am going to try and run a solo game for myself using this. I'll add on to this comment if I see any other little editing bits you might want to take a look at, and great job!
EDIT- Found another couple spots. Page 49, the descriptive text under "Action Rolls" reads "fast a fluid" instead of "fast and fluid." Also page 52, last portion of the "II. Landmark" section carried from the prior page, uses "Merlin" instead of your chosen rename of "Merlon" - and in the "II. Road" encounter description, you use the phrase "Each player can not roll to loot the Deer" instead of "now."