I may bid on your cell, up to a point of what I can afford, after that I hope it makes someone happy!
For the nozzles, when I was testing one a few weeks ago, my production was low so my flame was close to the copper nozzle, so it heated up and the copper nozzle melted the plastic hose it was attached to and then fell out.
Stan says the non-combustible gasses coming out act to lift the flame off of the nozzle to keep it cooler than the flame, so we need to keep this as a consideration.