An environmentalist considering an SUV??
The main advantages of an SUV are 4 wheel drive and ground clearance. I'm assuming you don't have to deal with too much snow in AL, so those aren't too important. I've ridden in the type of conversion van you posted, it's VERY roomy, almost like a mini-RV. Lots of room for stretching out and big LCD screens. The best advice I can give is to test drive AND test ride them. Sit in the back while someone else drives and imagine how comfortable you'd be after five hours back there.