I actually had ride in the yellow one in the 1980's. It was offered to me for sale but it was way out of my league. My understanding was that someone in the Traverse City Michigan area owns it. That car actually has a AMC 360 in it in place of the AMC 390.
There was also another guy attempting to reproduce them for a while. Haven't heard much about that project lately.
IMG_5362 by
Rick Jones, on Flickr
IMG_5363 by
Rick Jones, on Flickr
IMG_5364 by
Rick Jones, on Flickr