We're going back to Disney at the end of February and I think I want to rent a CARES for my youngest instead of taking her car seat, since we use Disney's transportation and don't need a car seat for a vehicle. I need suggestions on a reputable place to rent one from. She'll be a few months shy of 3 years old on our trip, and is currently 32 pounds and 36 inches tall. CARES is appropriate for her, right?