How to get word out of cars for sale.

Get good photos and the specifications about the cars and post them in the appropriate forum, for example Mopars in the "Mopar Automobiles For Sale" etc.

If there are any non Mopars list them in the "Non Mopar Vehicles For Sale" section.

Post a separate ad for each vehicle with price, location, photos, etc according to the forum rules.

List yourself as the contact and request people PM you for his info.

Others here do it quite often.