Mic suggestion for Baggs Element in CA Cargo

[Koamon]

Hi all, I have a CA Cargo equipped with a Baggs Element and I'm looking at the Baggs installation manual, it indicates that the endpin jack is stereo capable. The tip is for the Element and the ring is available for wiring a second source.i assume that it was designed to pair it with the Baggs M1 or M80. Since my Cargo soundhole placement is incompatible I am looking into a soundhole condenser mic option. I have an old Fishman Blender and Rane AP13. In both, the phantom power is supplied by wiring the negative and shield together. I've done the same with my IBeam in another guitar and it works great but now I need another mic to do the same with my Cargo. I don't want to spend a lot so I'm looking for inexpensive but quality soundhole mic. Any suggestions?
Thx!