Vans with the ability to support a handicapped person can be purchased from handicap stores, where one can either buy or rent a van to his specifications.
I would suggest going with a dealer that works with this type of van. If you visit www.betterlifemobility.com you will find new and used vans.
You can get used handicap vans or wheelchair vans in Nashville at the Nashville centers of the following stores/ websites:http://www.mobilityvansales.com/used-handicap-vans/vansales-in-nashville-tennessee.html; http://www.usedhandicapvans.net/; http://www.aavans.com/Vehicles/UsedWheelchairVans.aspx;
You could go to a store that sells handicap vans and see what their prices are. Or you could ask other people that you know that are experienced with handicap vans that may lead you in the right direction.
I don't think van are required to have handicap features, I think you have to have them added on...sort of like extras. Cars and vans are the same so there is no law that says that all vans must have handicap features.
There are several used car dealerships that have may sell used handicap vans. Used vans can also be converted into a handicap van. You may be able to find used handicap vans at car dealers in the area, as well as on CraigsList. A great website to find them in the Memphis area is http://www.mobilityvansales.com/used-handicap-vans/tennessee_vansales.html.
You can purchase a handicap van at car dealerships. Honda can make special hand pedals that are used to pedal the vehicle. Some vans are specially equipped with hand rails.
If you haven't found anything in the area, you may want to check online. I saw at accessiblevans.com handicap vans in the Gun Barrel City area.
Ability Center, located in Tucson is a provider of quality mobility products that includes handicap accessible vehicles and services. The company rents and sells handicap accessible conversion vans. Visit: http://www.abilitycenter.com.
These are given to them by the state. They provide proof of handicap, and then they are issued a plaque if they desire one.
grants for handcap vans
There are several companies online that sell handicap vans and deliver them nationwide. Two such companies are Mobility Vans USA at http://www.mobilityvansusa.com, and Ams Vans at http://www.amsvans.com.
Try Handicapped vans for sale‎ at 2345 N. Grand Ave, Los angeles, CA‎ - (818) 709-7000‎ There is also a company called Aero Mobility.