You didn't list any parameters, such price, mileage, brand, size. Autotrader is where I always look for a vehicle, within 75 miles of TV I found roughly 20 for sale. Here pictured are from a wide range. The information about these and all 20 are at the link below. Scroll down past the first three since they are paid ads.
Autotrader - 20 Handicap Equipped Vans
$34,800 2016 Chevrolet Express 3500 Extended Share 13,000 miles
$14,900 2008 Toyota Sienna XLE Limited Share, 128,000 miles
$12,500 2007 Ford E-350 and Econoline 350 Super Duty Wagon Share, 75,000 miles