You looking for new or used? I would think those would be in a lot of work vans in salvage yards. They're pretty bulletproof unless there are holes worn in it under the pedals.
I have a vinyl floor that I just pulled out of my low miles 2012 E350. We replaced it with carpet. If you can confirm it fits in your van, we can talk. Here are a few pictures. It is in excellent condition. PM me if you are interested.