The parts that you are needing are the following for a setup on another boat for the 1197 or the 997.

PC-10 (Power)
ASGR-16 or the ASGR50 (GPS)
XHS-9-HDSI-180-T (Transducer)
GM-2 (Mounting System)

You can mount your transducer high up on the transom of your boat to keep from knocking it of and just mount another transducer for running and add a Y cable. We also do offer a Thru-Hull transducer for side imaging. What I mean by that is drill a hole in your boat and run the shaft of the transducer up through the bottom of the boat. You just can not epoxy a side imaging transducer in your boat due to the beams coming out of the side of the transducer.