I need a decent pre-amp pickup for my acoustic guitar

[luckynumberslevin]

I have an Epiphone EJ200CE (the one w/o the pre-amp installed). Question is, I'd like to uhm modify the guitar's body so I can put the jack near the bottom of the guitar instead of a pickup, does anyone know where I can do this? Any help would be greatly appreciated

 

[fgl]

Davis Music sells & installs pre amps