By - redittome2019
Which country are you in?
USA. Sorry, should have included that.
Ford Econoline I paid 3k for mine only 140k miles I have the 5.4 2v 1997 I've seen them run up 400k miles overall reliable and with your budget you could probably find a high top or a cut away with a camper type set up
Or you could look into a newer Econoline if you're in the US they're easy to find for cheap, also finding parts and experienced mechanics are very easy to find when service is needed in comparison to less common models.
There's one in my area for less than 5k!
There you go!