StreamOfTheSky
Adventurer
Manyshot is the only feat that doesn't allow precision damage on every attack because it's a volley. Regular full attacking you can, no extra feat needed. The trick is moving 10+ ft and still full attacking, which is what Travel Devotion is for. And again, can you access Magic Item Compendium? It helps alot, may even make travel devotion unnecessary if the DM doesn't mind you switching your footwear to a new pair between fights (it's fine by the rules, he just might find it silly). 
Cloistered Cleric is found in Unearthed Arcana, the same place Wildshape Ranger is. Both are also included in the free online System Reference Documents, as my links demonstrate.
As for high levels, I hate to say this...but as flight and pouncing become more and more common, the entire point of archery becomes completely irrelevant. The higher level you go, the more obsolete you'll feel. Sorry, but have to be brutally honest. Thankfully though, I think your DM's plan to reach level 40 is a pipe dream, a group is lucky to even make it to level 20. If the game does get well into epic, you could always retire the character for a new one after a long and fulfilling career.

Cloistered Cleric is found in Unearthed Arcana, the same place Wildshape Ranger is. Both are also included in the free online System Reference Documents, as my links demonstrate.
As for high levels, I hate to say this...but as flight and pouncing become more and more common, the entire point of archery becomes completely irrelevant. The higher level you go, the more obsolete you'll feel. Sorry, but have to be brutally honest. Thankfully though, I think your DM's plan to reach level 40 is a pipe dream, a group is lucky to even make it to level 20. If the game does get well into epic, you could always retire the character for a new one after a long and fulfilling career.