I would STRONGLY suggest that you rent an
ECV from an off-site supplier rather than attempting to walk around at WDW. Also, make sure that someone OTHER THAN YOU is the one that does any assembly/disassembly and putting it into or out of a car's trunk.
A few years ago I had a kidney removed. My doctor said that I would go to DL/WDW but that for six months following the surgery any attractraction that warned people with either heart condition, bad backs, or being pregnant to avoid also applied to me.
Here is information about off-site
ECV rentals:
Walker Mobility:
1-888-726-6837
www.walkermobility.com
Care Medical:
http://www.caremedicalequipment.com/
RANDY'S Mobility is in Kissimmee 407-892-4777
http://randysmobility.com/
Colonial Medical
http://www.colonialmed.com/about_cms.html
I have used Walker a few times. They will ask for a credit card and charge it the day before arrival. They will deliver the ECV to your hotel bell services before your arrival and pick it up there after your departure. Their rates, especially for longer than a week, are much better than Disney's. Also, their scooters are much better. Randy's is less expensive, but you must be present both when they drop it off and when they pick it up.
You don't say if you are renting a car or what. If you are using a car for getting around, the
ECVs break down into five pieces, the heaviest about 39 pounds. They take about a minute or so to take apart and about two minutes (once you are used to it) to put it together.
Another suggestion is find out your state's requirements for a temporary disabled hang tag and get the paper work and have your doctor sign off on it. The tag will allow you to use any of the handicap parking areas (which will be a necessity). Also, with the policy of charging for valet parking, with a handicap hang tag the fees will be waived. Also the valets will usually volunteer to assist in loading/unloading an ECV. In Virginia I printed the required form from the DMV website. When I took the completed form to the DMV Office it took less than 15 minutes from the time I walked in until I had my tag.
ALSO, take it easy. If you feel tired go back to the room and take a nap; the rest of the family can play in the park and you can schedule a time and place (such as for a meal) to meet up with them I would agree that you dn't want to disappoint the family, but your physical well-being should be considered extremely important.
Mike