I have an LMS 480 that the LGC2000 puck died on. I saw the Elite 7 on sale for a little more than the new module and just bought one of those. My brother wants to put the LMS 480 on a little fishing boat and we're wondering if anyone has put a different (cheaper) module on one or has used a GPS with NMEA 2000 output in place of the module. Some of the iFinder units have NMEA output and if there is a cable available that would work. I also see units like the Garmin GPS18 that might work if you could find a cable. My question is does anyone know of an alternate unit that will work for less than the $200 they want for a repaired puck?