Sorry for takeing so long to reply. I couldn't get on the site for some reason.
Akantor armour is a good start, altho I never used it. It didn't have any good skills.
For a gunner, there are about 5-8 armour sets that will help you.
These are G-Rank sets but I think the lower ranks will have some of the same skills. I'm going to list the skills that make them useful.
Butterfly/Obituary armour = Good for Fatalis, Lao-Shan Lung(I use chakra for this)
Evade +2, Reloading Speed +2, Combine Success +15%
Narga armour = Good for Tigrex, Nargacuga, Diablos, Monoblos
Evade +2, Trap Master, Evade Distance Up
Tigrex armour = Good for Gravios, Khezu
High Grade Earplug
Golden Moon armour = Capture set.
Tranquilizing Celeb, Luck Booster, Tranquilizing Guru, Trap Master.
Bone S armour = Chameleos
Fatigue Cancellation, Quick Eating, Steal No Effect.
For other things I just use my Kirin armour.
Since you use bows, I will list some bows I recomend you to get.
Khezu Bow 2 = Raw: 288 Thunder: 280
Glorious Victory 2 = Raw: 336 Dragon: 320
Prominence Bow 5 = Raw: 300 Fire: 210
Icicle Bow 2 = Raw: 264 Ice:270
Bragonhead Harp 3 = Raw: 240 Water: 360 Defense: +20
Exterminator Bow 2 = Raw: 384 Defense: +20
Midnight Bow = Raw: 324
Bow Weapon trees: http://www.minegarde.com/wip/weapon2.php?w=bw