So I figured I'd help the D&D side.
18 (base), +4 racial (orc), +4 racial (proto), +2 racial (wild), +5 unnamed (level), +5 inherent (tome/wish), +2 deformity (warp touch), +4 circumstance (clockwork armor), +2 unnamed (silthilar muscles), +2 unnamed (horseshoes of flame), +2 unnamed (arm of nyr), +2 unnamed (psionic meditation), +1 unnamed (faustian pact), +1 unnamed (worm of minauros).
=54 (+22) before buffs.
+32 unnamed (giant size), +16 enhancement (bite of the wearbear), +4 unnamed (spider curse), +4 moral (valiant fury), +4 profane (infernal transformation), +4 sacred (holy transformation), +4 unnamed (greater visage of the deity), +2 size (righteous might), +2 unnamed (death kneel), +6 unnamed (greater rage), +4 alchemical (battlewine), +4 unnamed (rage zyme), +2 racial (ring of the white wyrm).
=142 (+66) after buffs.
Feel free to add any Class Features on top of that since everything listed is essentially race+items, through some of those Spells would have to be cast using Scrolls if you don't obtain your own spellcasting. Through to be honest, Strength Checks take a Standard Action in D&D so no matter if the wall's DC is 5 or 50 you can only break one wall per turn. Sundering walls on the other hand takes an Attack Action which combined with Spring Attack would let you move through any number of walls up to your normal Movement Speed.