This is our primary vehicle and we would prefer not to use the 3rd Row if possible. We just need the space for traveling, so need help with seats to fit. We will have a Chicco key fit 30 starting this summer in there. I am open to seat ideas for the other two. We have two nautilus,a Marathon and a Graco high back booster right now. Our oldest will be six and is about 42 lbs, our middle one is 3.5 and about 32 lbs. thanks.