You can do it on craigslist...Ive seen a ton of bongs, bubblers, pipes, and vaporizers on there. But all of the ads specify that they are strictly for tobacco use only.
Don't include any weed terms...and make sure they are 110% clean...i mean sparkling clean on every millimeter. They need to be brand new looking.
Also, i wouldn't have anyone over to your place of residence...Meet at a common place that's well populated.
Edit: Judging by your pictures, id expect about 80$ for the whole lot. And they dont look completely clean.