If this is the van you’re looking to buy, wow! But I’d be very cautious. This may be stolen, or the add may be placed as an identy theft scam. Be very careful sending this guy your personal info/ money. I recommend you verify the vin. Look to see if the public vin is there, how its attached, and verify it with the registration and vin number on the firewall before purchase, and have your local PD run the plate/ vin to see if it comes back to the same vehicle/ owner.
$23,900 is way too cheap for this rig. Unless the owner died, and the family just has no idea what it costs.
Assuming its from this add: https://sfbay.craigslist.org/eby/cto...690442268.html