I don't know if this is anything you were hoping for or thinking of for your Tauren Hunter, but this is kind of what I could put together after quickly browsing through WoWhead:
http://www.wowhead.com/compare?items=33 ... 7023:6+1:0
Most are random drops from various places. If they have any "of the..." after them, then you don't specifically need the ones I have listed there, just go with whatever drops first.
Went with a "nature-esque" theme and added the bow you wanted to use in, too. The set doesn't necessarily match with the bow, but they look nice together all the same, I think.
A few notes:
If you exit out of the model-viewer thing, the stuff in the left column is the set I kinda set eyes on that kinda all "fit" together (the set I linked to in the model-viewer). Added in the staff that was in your sig and set it off to the side of the final column, so you can drag that into the left column to see how it'd look together.
The final set doesn't have a helm picked out as there were no helms that really "fit", but the ones that seemed to fit the closest I have in their own separate column to the right-ish; you can click and drag them into the final set to see if you like any of them (I don't blame you if you don't, though XP).
Shoulders are kinda wonky, too, but the ones I picked are were the only ones I saw on glancing through that would even come close to matching the set. There aren't alot of "nature"-esque mail shoulders.
Belt shouldn't really matter (they've never really mattered graphics-wise in my experience, but maybe someone else could go through belts and find one?). Even though the set I picked out has bracers in it, the bracers really shouldn't matter (unless you go with a difference set of gloves).
Hopefully this at least gives you an idea or helps somewhat. And if this isn't what you're looking for, hopefully someone else can help you find what you're looking for.
Edit:
Oh! I didn't notice you had a hat in your RP set! It matched your Tauren's fur very well, lol. Well...unfortunately I couldn't find anything that would match your helm exactly that's mail... The closest I could find were
http://www.wowhead.com/item=25683 and
http://www.wowhead.com/item=25681, and neither really match the set I suggested for you. Sorry.
