Just thought I'd point something out.
Our good friends at Numrich have free on line schematics for many fine firearms including S&W.
Here is the schematic for the old Model 10. Notice that there's only 88 listed parts and several of those are variations on the same part.
http://www.e-gunparts.com/productsch...rModel=1980z10
Now hee is the much more modern Model 686 and it has an incredible 90 numbered parts. So it is much more complicated than the old gun.
http://www.e-gunparts.com/productsch...Model=1980z686
Here's a thread from the High Road a related gun forum
http://www.thehighroad.org/showthread.php?t=397027
In it a poster describes his own gun smithing experience on a model ten. You'll need to be a member to see the pictures.
Finally here's a video from Youtube. The guy makes working on a revolver look easy.
http://www.youtube.com/watch?v=5YWDK3OS7IA