Along the lines of amazing S-1's, here is another model of one. Dave saw it on an old archive of an eBay live auction. I'm kind of kicking myself for missing this.
It's all scratchbuilt and make entirely out of wood in Gauge 1. It's friggin clockwork (if you can believe that!)
Check this thing out, it went for 110 Euros (a little over 200 bucks). Sheesh, I can't get a tank of guess for that kind of money!
PS I'd still like to save the real S-1. Please, if anyone knows anything; we need to save this loco for future generations. Let me know who owns it, if they want to sell it or if we can get someone like a train museum to take it!