If you flight is at the gate at 1010a, figure 10 minutes to disembark and another 10-15 minutes to get to the tram ( with a potty break ). I think the tram is only about a 5 minute ride. I'm assuming you are doing Magical Express. Figure about 15 minutes for the wait for/on the bus. From there it's about 35 minutes to the resort. I'd say you'll arrive between 1130a and 1145a. Check in/ drop bags / bus transportation - I'd say realistically you'd arrive at DS around 1245p-1p.