The Zendo set is still available in Second Life (for free) at Perry 250, 20. The person distributing it, eltee Statosky, is still active in Second Life. I've played around with pyramids some in SL too, including some basic Treehouse movements. I'd be interested in continuing the work if you're looking for a partner. Since I'm much better at SL than povray, I used some screencaps in a Zendo game on SDG last year. http://superdupergames.org/main.html?page=play_zen&num=13979