Stats on the Torso and weapons

[Shin Okada]

Does the Monkeygrip feat stack with Strongarm Bracers? If it does, you could wield the sword as is. (Well, once you get a feat to burn, anyway)

I don't know that bracer but it will not likely to stack. Monkeygrip feat allows you to use melee weapons one size category larger than YOU are. And similar abilities, such as Powerful Build, also compare the character's actual size and the weapon's size. So usually, such abilities do not stack.