Nope, you wont be able to 1 shot them. At 52 with an sos+5 sword, and 114% magic balance it was still a nuke + shout and possibly another shout. With an equal spear you might come close, but i still think you will be just short.
EDIT: If you end up getting an SOM, thats a whole different story. You should be able to 1 shot them if its +3-+5