It will work just fine with the supplied transducer as long as the hull is not cored (yours isn't), you don't located it directly over the keel/strut/prop/rudder, and the fiberglass laminate is well laid up and void free. You may have to try a few locations in order to find one that works well so I wouldn't go straight to the epoxy installation.
The simplest method is finding a spot either forward of the keel or aft of the keel where water lays in your bilge and try placing it in the bilge water, the bilge water will provide a void free medium for it to shot through, if it doesn't work, move it around a bit until it gets a good signal.
Obviously you don't always want water laying around your bilge but most boats have a little somewhere, so try those places first. If you don't have any wet areas or none of them work, you can dam up an area with modeling clay to hold a little water for you to try the transducer. Once you have a good location selected, you can make a more permanent installation by epoxying a piece of pvc pipe on end, shaped to the contour of the inner hull and place the transducer inside loosely along with some antifreeze or you can (non-thickened) epoxy it directly in place (without the pvc pipe) using the modeling clay to keep the epoxy from running out and leaving voids until it cures. Cheap 5 minute epoxy from a hardware store works well and you can usually pry it free of the hull as long as you don't prep the hull too well. We ran a walkaround for years with a hummingbird transducer laying in bilge water for 15 years, worked better than the transom mount. This would not work for a fancy side scanning unit.
