The weapon breakage stuff relies partly on Cam in Tutu Tweaks and partly on me to update Tutufix (). There's a post somewhere on G3 about it somewhere which I can't find because the internet's too slow.
Since I'm getting ready to wrap up production and get beta testing started, I wanted to see if anyone had any additions to add for the Tutu release.
For instance, the Mysterious Vial Quest can be expanded a bit to affect the breakage probability of non-magical weapons (Sim, I've no clue how to do this, btw...). A few journal entries will need to be tweaked, as well, but all in all I don't think there's anything really difficult involved in the conversion.