Since your looking for both a nymph and streamer rod, perhaps consider a 9'6" 6wt or even a 10' as some have a suggested; however, depending on the action of the rod, 10' may be a bit long for overhead casting streamers. I have a 9' 6wt Z-axis, it's great for what your looking to do, big streamers aside. However, for bigger water like the Bow, having that extra length is very nice, especially when on foot.
For Bullies I would think (I have little experience in fishing for Bullies) you would need something bigger than a 6, some of the rigs guys have shown me are pretty bulky and those fish can get BIG. I read somewhere that the Sage small mouth rod is a popular AB Bull Trout stick.