Width of a Single Neck Guitar - Bent??

[Scott Howard]

I have a set of castings ( not finished , rough castings ) for a SD-10 and I would like to do some trading for a set of SD-12 . The ones I have are too narrow to make a 12 string out of. The hole is also to small and the jack is located so that making it a 12 string will not work. I can get some pics if anyone is interested in trading . Scott