most camper roof / sleeping spaces are flexible and expand up when required so this won't effect the way the vehicle drives
If you look at this website you'll see that the sleeping space is a fabric / tent affair that is only erected when needed
its also possible to have a rigid roof on the new tent section so you could mount the desired solar panel on this part
there are many firms around the country that tackle this work if you don't want to do it yourself
do you still need help?
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