This is our first time traveling with our 26 month old and 9 month old. I need help with which option is better?

1. Rent car seats for both kids, and bring a lightweight double maclaren stroller? I would have to buy a double maclaren, found for about $200

2. Rent 1 car seat for older child, and bring baby carrier for second child, and bring the big city select stroller so the baby's carseat can fit right on it and there is a seat for older child?

We are going from Atlanta to south Florida for a family reunion for passover. So we will likely be just going from airport to hotel and to the family which is minutes from family.

What do you think?