Looking at purchasing a 1993 Toyota Winnebago and need help. After a lot of reading I am worried about weight capacity for the vehicle. It seems from my reading that if the tanks are full that the vehicle already exceeds gvw of 6000lbs. I wanted to use vehicle to travel with family and camp close to home. Have 4 children and know that quarters will be tight - will be putting a few of them in a tent for sleeping. Can anyone help on this? Our whole family weighs about 800 lbs.