Hehehe thanks Heatfire, I too wished the parts were cheaper.....

Yeah I used an older one motor drive tamiya 1/16. And you are right, the newer 2 motor drive chassis won't work in this case unless you have 2 identical steam engines, needs to be 2 piston to be able to drive one side of the track, running off of the same boiler.... and would eat up steam too fast.... too much of a headache to even think about

And yeah, it would be cool to share with you guys the sounds that it makes, but my digital camera has no sound recording capabilities This particular steam engine is quieter than most. Most of them have this cool "pah! pah! pah!" sound to them, this one is a softer and smoother "put put" sound, as well as an exhaust run off, which I've directed through to a smoke stack to an oil water collecting tank, to give it that cool look of real steam coming off of the smoke stack when it is running.

I've considered making more of these for sale, now that I've finally got a system running, but given that it is really hard to track down an old 1 motor tank chassis, and cost and time - I don't think too many people will be willing to fork out the money even to cover material costs.