I think Grits is right, in that the extra thickness and heft of the Epix complements the bulk of the Power Armor. Likewise the thinness of the Zweihander works best with the Recon Armor. So I have it down to two combos:
Zweihander & Recon ArmorEpix & Power ArmorI think what I will do is start the game with the Recon & Zwei, and then when she gets higher level upgrade to the Power Armor and Epix sword.
This also beings me to the next conundrum. What to use as a backup weapon, for those rare occasions when the living dead girl cannot come to grips with an opponent. She is not a sniper, so a short ranged weapon is in order.
I was going to use a shotgun, but it is just too brown. She needs something that is greyer, more monotone. A .44 Magnum is one thought, but a lot of my characters have used that already. I was thinking maybe a minigun instead. I am going to have to experiment with different guns and see how they look.