Dodge Van tow vehicle ??

ok, so I know some of you here on FABO have a ton of experience towing.

So is a Full size 70s B van a good tow vehicle ??

The one in question is an extended wheel base (it's a big boy for sure). It's a Passenger van (15 pass?) being converted to a cargo van. (windows deleted and metal panels welded in)

It's a 3/4 ton chassis with the big wheels ( I think 8 lugs)

Will this tow a 20 foot car trailer with a Duster or Dart on the trailer with no issues ???