Sherry and I have a mint 2007 260DA, but I don't like having as my only depth reading the Smartcraft Gauge, that alternates readouts of depth and trim. I want a 5-7" unit like a Humminbird, Lowrance or Garmin. I've installed dozens of these in bass boats, but my issue on the Sea Ray is where to put the transducer. I want to do an internal, epoxy mounted installation, in the sump/engine area. Don't want to mount externally, and for sure don't want to cut a hole for a through hull mount. Has anyone done this on a 260 or similar hull. Will shoot through transducer mount work, like it does on smaller boats? Thanks for the help.