A "portable" style suitcase solar panel negates the need for punching holes into the roof and the running of cables down into the interior.
A 600W inverter will supply sufficient power to run what you want it to run.
The number one concern is you MUST have a method to replace the amps to the batteries that the inverter/devices consume.
That is either a fuel powered generator or a solar setup.
I can fully recommend a Go-Power brand solar suitcase with 2 60 watt panels joined together for 120 watts.
Unfold it, lay out the panels, plug it in......done for the remainder of your trip......save moving it to get the sun angle a couple of times a day.
Plus.....with the include cable, you can seek out the sun, whereas on the roof you have no such option.
As dry camping is my thing without a source for shore power, solar is the way to go.....after all, when the initial costs are done and swallowed, it's FREE power.
