Strength Build
Other notes:
I would personally take away 10 points in strength and add them into endurance and use the dragon great sword (for aesthetics) to mid roll.
You can realistically replace the weapons for any strength weapon you want and it'll probably work.
Can take a few points away from strength to add one more attunement slot for power within.
If you have the (regular) iron helm you could use that instead (if you didn't manage to save solaire or just decided to loot him anyway).