Marksmanship VS. Archery

Ok so I am planning on lvln RNG and have need some advice from some experienced RNGs. Which from your experience parses higher , lets say Hellfire +1 and Silver Bullets VS. E.Bow/V.Bow and Kabura arrows. From what I can tell those seem to be the best non relic combos for each side (if I am wrong please post what is better).

It seems to me that it is easier to get a large boost in AGI compared to getting the same boost from STR (such as S. Kote and Hachi feet) . So I would think that since AGI is the main MOD. for all the Marksmanship WS that matter that this would make it parse higher ?

Last reason I need to know is because I am unsure as to what would be the best Augments to put on my Anwig Salade and just what gear to focus on period for end game.

One last thing please dont post if you have not lvld RNG. I want as much real info as possible. Thanks in advance and sorry for the lengthy post.