I don't have any real updates on the progress as we have simply been camping in it for the last year! I still have to install the sink and hang the doors, but the toilet works and the front water spigot is doing the job for now.
I thought you might like a picture of the new (to me) tow vehicle for my Playpac. Its a 1983 VW Vanagon Westfalia with an air-cooled 2.0 engine. It took VW designers 10 years to catch up to the design of Steve's vision!