Darkwood's Backburner Workshop:
Project: Runic Power Armor (Step 1)
Part 1 (The Helmet): Produce an oversized helmet with fully sculpted facial features, bearing Runes of [Forged Eye], [Forged Ear], and [Forged Nose] to give the wearer a full set of facial senses ([Forged Tongue] has been deemed unnecessary for this project)
Thought Process: If a helmet doesn't have to be 'worn' like a traditional helmet (i.e. Affixed to the head of the user) it could function as a Talisman of sorts, thus expanding the available Rune Slots. (So long as the helmet isn't fully attached/can be knocked off by a sufficiently hard blow it should work)
Part 2 (The Body): Produce an oversized suit of armor bearing Runes of [Animation], [Direction], and [Forged Limb]. To produce a suit of armor that can be worn like a second skin. [Animation] and [Forged Limb] should allow the armor to lift its own weight, thus allowing it to be thicker and heavier.
Thought Process: Admittedly I'm trying to place as much "Conceptual Weight" as possible onto the idea of the armor functioning as an extension of the wearer's body and Brute Forcing the desired result.
Hopeful Result: x1.5 Size Dwarf with appropriately extra thick protection, capable of wielding suitably oversized weaponry. Unknown if strength will translate appropriately to size. If results can be Compressed, Step 2 (Single Piece Power Armor) can be devised, leading directly to Step 3 (Single Rune Power Armor)
Disorganized Notes:
Disclaimer: I'm not calling it the Rune of Waking. It will always be the Rune of Animation to me.
Minimum helmet size will be determined by the minimum size of a Forged Eye, as at minimum the eye must sit in front of the wearer's own. (Or the 'helmet' could be a solid block in the shape of a head. That might work too.)
It may be prudent to design the armor so the wearer would be looking out through the chest/beard area, to further increase the effective final height and make maximum use of the helmet.
The helmet could be designed with a protrusion of straps or protrusions so it can slot into the armor portion or be strapped to the wearer's head. (May be dangerous, may make the thing qualify as a single Rune Item. Experimentation data required.)
It may or may not be possible for a wearer to wear armor underneath the oversized set (Results pending)
Use of [Forged Limb] may require non-hollow arms and legs, the required extent of which will determine minimum size. i.e. If only the lower leg and forearms (Knee to foot and elbow to hand) need be fully prosthetic, then the estimated x1.5 size projection works. If the entire arm and/or leg sections need be prosthetic, then the "Chair in torso" design will need to be considered. (And the Rule of Form consulted) forcing a minimum size to the Armor based on Leg Length, potentially only the lower leg (Knee and down) need be filled in.