To make this decision, you need to consider:
- are you also replacing the power distribution panel (110 vac breaker panel and 12 vdc fuse panel), dimensions
- your dc amperage is 40 amps; do you want to increase it?
- your ac amperage is not shown; probably should upgrade to 30 amps or 50 amps if not already there; add a 30 or 50 amp shore power inlet connector if not already added; upgrade the wiring between the power distribution panel and the shore power inlet
- what type of battery
charger is needed
Progressive Dynamics is a good solid brand and makes a wide range of deck mount converters, power distributions panels and combined units.