I've got the Garmin Striker 7SV unit on my boat and have the transponder mounted on the back. I find myself going fishing more and more with friends who a lot of times do not have fish finders on their boat and I've been trying to think of a way to take along mine. I couldn't imagine wanting to undo the transponder and mess with wiring each time, though. I came across what Garmin calls their portable fishing kit. Looks like it comes with a nice bag, bracket for the unit, suction-cup mount and foam float for the transducer, battery system for power, and possibly the wiring for the transponder. From what I can TELL it appears it does NOT come with the transponder, is that correct? How much would a second transponder cost? Does anyone have any experience with this setup?