Ifyou are at VWL, I would call and use ALamo since they are at the CCC and will come and get you. It's a nice option. They also run $20 a day rental specials on their web site so check them out. The location code for the CCC is ORLR72 so put that in instead of MCO for the airport.
Make sure you don't go to the Crossroads for food and supplies. Very expensive. Ask at guest relations where the nearest PUBLIX is. It is very close by actually and if you PM me, I will give you directions. There are also Walmart superstores in the area.
Kris