@scottmik2 My nephew traveled with his 2 year-old and 6 month-old daughters in September, and this is what they did.
They gate-checked a Pack & Play portable playpen for the baby to sleep in. They used
FL Tours and got a towncar that included a half-hour grocery stop on the way from the airport to the resort. FL Tours will include one or two car seats and runs around $80 round trip.
It is not worth purchasing Magic Bands IMO. As a guest of the Swan/Dolphin, the only things that you can use the bands for are park tickets and Fastpasses. I purchased a lanyard with a zip top plastic pouch (from Home Depot) and keep my room key and park ticket in it. I don’t like anything tight on my wrist so I have no desire to wear an MB.
You can look on the Transportation forum here for more info on FL Tours. The $80 round trip price is a deal since you get a car seat and a supermarket sweep. Uber X or Black will cost a bit less, but will not include the supermarket stop.