One can find information about vans for handicapped on websites such as Wikipedia, Braunability or Ams Vans. Information are also available on WheelChair Vans and N-Media.
A would suggest Rent-A-Center or Uhaul for you to find vans for you to rent.
you can find them at the mall or the vans outlet
One can find conversion vans through numerous trading websites, like eBay or Craiglist. One can also find conversion vans through one's local car dealer.
They sell sued vans on Ebay and they are also on carmax.
I would go with vans from rent-a-center or buy one from Enterprise.
There are several good places to find custom vans in Indiana. I would recommend using Sterling Vans. They have a website located at www.sterlingvans.com.
You Can Find Them Online Try EBAY
One can find vans for rent at your nearest major airplane location. Many car and van companies set up their businesses there so people can rent their cars and vans.
Classic vans are sold at the Shop411 website. It is also found at Conversion Vans and Classic Cars. You can find them also at the Pronto website or at Tillys.
Used wheelchair vans for sale can be found at Access America's Vans in New Jersey. The telephone number is 888.880.8267.
You can find them at aavans (http://www.aavans.com/Louisiana/WheelchairVanDelivery.aspx), Mobility Van Sales (http://www.mobilityvansales.com/used-handicap-vans/louisiana_vansales.html), and Acces Vans Of Louisiana (http://www.accessvans.org/).