Finished at last after several years hard work by volunteers.
Basically stripped down to tens of thousands of component parts,
tidied up and reassembled.

After its first ride today:
http://i27.tinypic.com/25ks8pk.jpg

The two controllers took me several months to fix up and reassemble:
http://i28.tinypic.com/2a6pnid.jpg

Others did all the wooden bits!
I made a number of mechanical parts that were missing. I've been
posting about those for a while. Thanks for the positive suggestions.

Parts carved out of blocks of steel:
http://i26.tinypic.com/n6f3o0.jpg
http://i40.tinypic.com/suxesn.jpg

and brass:
http://i39.tinypic.com/167sg9g.jpg