I just listed a few demo/prototype stoves in the classifieds. Included is "The Beast," a 10.25" x 24" roll-up with lots of new components and a 4" x 7' pipe.
A "Pig" and a "Mini Cylinder," both non collapsing cylinder stoves.

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/9063528#Post9063528

Thanks


Ed T