in my amby i have two bench seats each side over wheel arches and use a roll of slats to form a double sleeping across the van, i don't do kids but slept one underneath the slats and another across the driver/passenger seats once which worked out fine, she did not last long--------too needy.

i've got shower/loo/oven/fridge freezer/sink/grill/double burner/ catalytic heater/two wardrobes/lockers etc. etc. amby's are good 'cos they are insulated have windows and skylights and plush suspension, mine is mk2 hanlon body 1985 v6petrol. A young 'en could easily be caged in the overcab locker btw
