[JRTJH]

As long as you can keep the "wizard" awake, happy and well fed" chances are his union will let him stay. Just be aware, that if he smokes on the job, you'll probably be looking for a new "wizard"..... All the converter/chargers have improved significantly since 2005. They all are, for the most part, self-contained and interchangeable. As long as the wiring from the converter/charger to the fuse panel is adequate for the amperage of the new converter/charger and the unit will fit in the space available (don't forget ventilation requirements) there's no reason not to upgrade to a higher amperage output. Most modern "mid line RV's" are using 55 amp converter/chargers, so that would probably be a "most available/best price" unit.