Years ago, I used to read Hemmings Motor news. It had a vast array of Vintage cars and specialty vehicles form all makes. I think they are also international. Of course there is always these MoPar sites and it's all free advertising. If you sell it on this site you will be "liable" to supply Dave with a case of Pabst Blue Ribbon Beer!!
I however, have NO experience with e-bay other than amusing myself browsing it.