This is exactly what I am doing for my hunter. Following the Hytbold Hunter Plan you can get 6 pieces (3h/3b) with only Ally rep with the factions. I opted NOT to get the Huntsman Helm but went the long route of finishing off Kindred rep with Sutcrofts and ponying up the extra tokens to fix the Sutcroft house, to get the Bowmaster Helm. Now I enjoy both the Bowmaster bonuses plus the 2-piece Huntsman bonus.
I have more questions though. How to fill out the rest of your kit (bowmaster hunter).
For cloak I made the one-shot recipe cloak from the Quatermaster's (did not crit but the crit is not all that superior). Dexterous Cloak of the Mark.
What jewelry should I try to get? I am still using a hodge-podge of quest items and crafted.
Currently using a 2A bow and a 3A sword (2A for the hunter main hand is not that critical).
Using quest reward 2A bridle.
Kinships: Fifth Star Vagabonds on Crickhollow (Dotswith); Random Access on Arkenstone (Dottiel)