I also broke my right ankle just before our cruise. My case: 5 days before we boarded the ship, I took a tumble from my front porch step...later that same day, I had surgery (10 pins, metal plate) and a cast.
We drove from St. Louis to Florida 3 days later and took with us a walker (a waste-imo-and something we definitely didn't use at all, a wheelchair, which we did use for those trips that were from one end of ship to the other, and finally, we used a thing called a knee walker, which I loved the most. Here is a picture of it.
We rented ours for $20 a week and they can be found at local pharmacies. You'll probably need to check your phone book (either via internet or regular book pages). Along those lines, we also secured waterproof leg covering at Walgreens for $15 (for two). Here is a picture of it.
The Dream DID NOT have anything available except for what they had in their medical facilities. We called ahead to
Disney Cruise Line and was told we HAD to bring our own equipment.
They did, however, set us up for a shower chair AND an elevated toilet seat for our regular room. The day we left St. Louis, I was able to secure a handicap room at the last minute and it was truly a godsend because the bathroom was already set up and I utilized all the equipment in there. Continue to check with Disney to see if you can get one of these rooms. They are spacious. Believe it or not, I used all the room in the room with the wheelchair.
We did cancel the other equipment. For us we would never have been able to get in the regular room with the wheelchair...impossible (too narrow). The knee walker would've been hard, too, because the space is also to narrow to turn things around. The little jump to the bathroom would've been tricky.
As you know you can't put any weight on the foot and it's quite difficult to not do that from a regular sized toilet/chair/sofa etc.
I found that I was really at an inconvenience so early going on the cruise after the break. You, however, do have a little more time between the break and the cruise trip... and it shouldn't be bad for you.
We didn't do any excursions. This was our 8th cruise so it was okay, but I would've been bummed if it was our first or second. On
Castaway Cay, our family (10 out of the 14 of us) rented a cabana, which was wonderful. Everyone could move around and I stayed put, yet I had the view of the water. On Castaway Cay, they have wheelchairs that are made for beaches, which was very nice.
One thing I learned about the elevators is either go early (before the crowds) to get on the elevator or you won't be able to get on them due to the "walkers" (a.k.a normal everyday people who don't have any special needs) walking much faster and securing themselves and their families thus filling up the elevator and leaving you no room to get on (with a wheelchair). This happened MANY times during our cruise. OR do what I learned to do, hit the button opposite of where I (and everyone else) wanted to go so that I would get on the elevator and be on it when it came back to the floor where I started.
For our cruise, and in hindsight, it wasn't our best ever cruise. However, that said, it still was a decent cruise because anytime I'm on vacation, away from the daily grind, and on a Disney ship, how could it not be wonderful. I jokingly tell my hubby that I want a do-over so that I could actually explore the ship and do some of the activities we missed because it was just too much hassle to get from one place to another. We didn't even use our veranda too much due to the wheelchair. If I had the crutches, it might've been easier to maneuver the door and chair.
Hope this has helped you.