I have a Yamaha FG720S 12-string that I would like to fit with an acoustic pickup. From what I have seen, read, and heard, I like the iBeam for its tone and ease of installation. But is it compatible with a 12-string?

I am also wondering how to deal with the battery placement within the guitar body. Are there any diagrams or photos that would help me understand where this goes that is out of the way, yet easily accessible for battery changes?

I am also wondering if the iBeam is available with an onboard preamp with EQ and perhaps a tuner? I know it would complicate the installation, but might be worth the effort.