Looking into finding A Outfitter/guide for Trad archery Caribou hunt. Anyone recommend one.

True North Safaris out of Yellowknife has taken many a trad bowhunter.  
While not specifically trad only (or bow only) they know what it takes to make sure you will have a good time.

One person who has hunted there a few times and can reccommend it is Jay St Charles.  A link to True North Safaris can be found on Jay's website   http://www.selfbow.com/