Just an update for you all: As I was cleaning out the brood box I found dozens of dead larvae on the bottom, as well as noticed as quite a bit of the wood is rotting and falling apart. I've decided to scrap the whole thing including the frames.
I've hired a local carpenter to have a Langstroth built (brood box and a 10 frame super), using the the instructions I found online. We decided to use what's locally called Kalantas (Philippine Cedar) it's a hardwood that's found throughout South East Asia.