I've got a couple of things left over from my last boat that was rigged with Garmin units that I found today. What would a new, uninstalled GT-54 transducer and LakeVu G3 Ultra HD East map card be worth? The map card was installed but was removed when I sold the boat. I have the original packaging for it but no packaging for the transducer, but do have all the original mounting hardware in a bag. I'd like to get them out of my way.