I've got a buddy who has had a couple of these campers, loves 'em. They were made locally.
Selling stuff on Craigslist can be a pain. You get a lot of phone calls from folks who turn out to not be serious buyers. Your neighbor is advertising on the Denver Craigslist and then has people who may decide not to drive clear down to Larkspur or if they do, want to try to bargain with him when they get there.