I'm still curious, however, if the grey 785 open spoke wheels and axles will fit onto a century club 773. The locomotives are the same cast and it appears the only exterior difference is the shell color and the wheels.
You would need to change the axles as well because the 773 has Philips head screws holding the wheels while the 785 has what appears to be push ons. 773's magnetraction would be lost but it would definitely help its look.
If anyone has any ideas, I would very much like to hear them.
-Cole