Welcome. Here is a list of places that DIS posters have reported renting from:
CARE Medical Equipment - 1-800-741-2282
www.caremedicalequipment.com
RANDY'S Mobility in Kissimmee 407-892-4777
http://www.randysmobility.com/
Walker Medical - 1-800-334-9501
www.walkermobility.com
Colonial Medical
http://www.colonialmed.com/about_cms.html
My DD uses a manual and a power wheelchair, so we don't have experience with
ecvs. It appears not to be too difficult to get the hang of driving one from what I can see. People report the first time getting on the bus is a little tricky, but after that it's easier. One thing that might help is to have her practice backing up since she will need to back onto the bus lift. A lot of people don't know that and backing up for the first time when you have to get it in a specific place is hard.