I have a Castilla CN-40, I've owned it for 16 years now. It was my first guitar and at the base and neck the finish keeps cracking and the wood is coming unglued. I have sent it to shops for repair, and th repair lasts a few months, but after that...is there a frame like apparatus i can put on my guitar to keep it together? Or does anyone know how to get ahold of Castilla...if they're still around?