There is no good answer to this question. It's like asking if blondes have more fun. There are just too many variables.
If you want to really rough it and can do without most of the things that we take for granted in modern life then you may not need any solar at all. If you like your comforts and can't stand to sweat then you need a really big solar setup or a generator
You probably fall
between these two extremes. Most likely you will want a few creature comforts but don't mind doing without the bigger power users if it means enjoying remote places.
If money was no object you wouldn't be looking at an FGRV. You'd be looking at pusher motor homes with big tow behinds. So keeping economy in mind but allowing for some comforts I'd suggest that you stay with the panel you have selected. Here's why:
To get full performance out of your panel you would have to keep it oriented to the sun. If you just set it and forget it you will be lucky to get half of the rating in amp-hours per day.
Some days the sun just doesn't shine very much. This is the biggest weakness of solar.
It is more likely that over time your power use will go up rather than down.
A decent controller will take care of the niceties.
As they age, solar panels lose efficiency. In a few years it won't do what it will today. You need to plan for some losses.
It is far better to have and not need than to need and not have. This is a nearly universal truth.
I don't think 50 lbs is too much to handle but if you do then maybe that is your decider.
Are you handy enough to turn a solar panel
into an awning
or window shade? That could obviate the weight.