You may want to check at carsdirect.com. CarsDirect is the best place to buy new cars and used cars and will help you with auto your financing. if you need to.
Your local used car lot is a good place to look for a conversion van. Even if the lot you visit does not have what you are looking for in stock they can keep an eye out for you and call you if they find something. Ebay.com is also a good place to buy used vehicles if you are comfortable purchasing a van using an on-line format.
You can buy a new sprinter van through the Mercedes company. You can also look on this website for used and new ones: http://www.sprintervans.com/. Good luck.
Classic van is a great place to buy a Chevy conversion van at an affordable price for a family vacation.
If you buy or rent a used van from a reliable company then it should be reliable.If you buy or rent a used van from people take it to your local auto repair and ask them to check the van.
haulage
Yes you can buy a used cargo van on ebay. Type in cargo van when you get to the website and you will see a list of all the ones you can choose from and their price
Enterprise Rent-A-Car is a good place to find just what you are looking for when it comes to renting a good van. They have a division specializing in mini van rentals.
A good place to find local used cars, campers, etc... is Craigslist .
I would suggest you do a little research on Ford to see if they make a van like you are looking for. If they are then go down to the local Ford dealership to arrange to buy one.
IMED Mobility is one company located in Green Bay, WI that you can look into for used handicap vans. Another that you can look into is Mobility Van Sales.
You can look for a good used wheelchair accessible van at mobilityvansales.com.
Used panel vans are available at many local used car dealerships. Some should also be available on Craigslist. Or if they do not have the desired van, then shopping at other used car dealerships would be a good idea.