My current B is all electric. I was skeptical when we bought it but it is a fairly minimal B to begin with and it has worked out well. I wish I had more battery and some solar but we only are in no power camping situations once sometimes twice a year. We bought a small butane/propane 1 burner to cook on when we are off the grid and use a cooler. We enjoy a refrigerator that doesn't have to be perfectly level and works well and gets cold fast.
I'm thinking of adding more battery power, not sure of the solar because of the shape of my roof. I never use the generator just too noisy. If I can find a shop that does fabrication work I may have the generator removed an a large storage/battery box installed.